Add mapper `#31` MAPPER_GG_Gear_20_in_1_FFFF_FFFE_button for "Super Gear 20 in 1 [Ninja Gaiden]" pushbutton multicart

[bsittler]

Since this multicart has no menu and uses a pushbutton or a power-cycle to switch games, I use a bit of SRAM to store its current state. Reset the machine (backspace in GG mode, or alt-backspace in SMS-GG mode) to cycle to the next game.

There is still some glitchiness in the save-state mechanism that needs to be resolved, but all games at least start.

I've been calling this "Super Gear 20 in 1 [Ninja Gaiden] (Unl)" as it is a menu-less pushbutton Game Gear multicart with "GEAR 20 in 1" printed on the label along with the game list (which is printed in both English [with one Japanese exception] and Chinese)

Another owner of the same cartridge has posted a picture of the box here: https://www.smspower.org/forums/files/2011_0619_075620aa_190.jpg

The box says:

SUPER GEAR 20 in 1 SELECT GAMSON SCREEN 超級强卡 GEAR 20 in 1 (partial simplification of "超級強卡 GEAR 20 in 1", i.e. "super powerful card GEAR 20 in 1")

NOTE: the use of simplified 强 in place of 強 alongside otherwise-traditional characters may suggest a Taiwanese origin

The cartridge contains a mix of Game Gear games (four are 128K and three are 32K) and SMS games (all thirteen are 32K). Many are unmodified copies of official releases, though Ninja Gaiden (the first game in the multicart) has had the Sega logo partly removed (only an outline remains.)

The label printing quality is fairly mediocre and some of the entries are printed too fuzzily to read with complete confidence; the game lists below include my best guesses for some of the blurrier parts. Also some of the characters were simply missing from the label, for instance the first digit of some of the higher-numbered menu items. Those I have omitted too. Some characters are slightly wrong (for instance katakana missing voicing marks) or incongruous (for instance a simplified character form used where a traditional one would better match the rest of the character forms.)

Game list (English version [with one Japanese exception] from the left half of the label collated with Chinese version from the right half of the label):

01. NINJA GAIDEN / 01. 忍者外傳 (i.e. "Ninja Gaiden"); it's [GG] Ninja Gaiden (Japan) with one byte changed to deface the Sega logo
02. HALLEY WARS / 02. 哈雷慧星 (i.e. "Halley's comet"); it's [GG] Halley Wars (Japan)
03. HEAVY WEIGHT CHAMP / 03. 拳擊手 (i.e. "boxer"); it's [GG] Heavy Weight Champ (Japan)
04. ALIEN SYNDROME / 04. 異形風暴 (i.e. "Alien Storm"); it's [GG] Alien Syndrome (Japan)
05. RSTRO FLASH [typo for ASTRO FLASH] / 05. 噴射機 (i.e. "jet machine"); it's [SMS] Astro Flash (Japan) with some changes
06. 青春スキャンタル [typo for 青春スキャンダル, i.e. "Seishun Scandal"] / 06. 青春爭霸賽 (i.e. "youth competition"); it's [SMS] Seishun Scandal (Japan)
07. SPY VS SPY / 07. 諜對諜 (i.e. "spy vs. spy"); it's [SMS] Spy vs Spy (Japan)
08. BANK PANIC / 08. 銀行大盗 [simplification/typo of 銀行大盜, i.e. "bank robber"]; it's [SMS] Bank Panic (Europe) with one byte changed
09. TEDDY BOY BLUES / 09. 擲骰小子 (i.e. "dice kid"); it's [SMS] Teddy Boy Blues (Japan)
10. GHOST HOUSE / 10. 鬼屋歷險記 (i.e. "haunted house adventures"); it's [SMS] Ghost House (Japan)
11. SATELLITE 7 / 11. 衛星七號 (i.e. "satellite seven"); it's [SMS] Satellite 7 (Japan)
12. HANG·ON / 12. 電單車賽 (i.e. "motorcycle race"); it's [SMS] Hang On (Europe)
13. SOCCER / 13. 足球 (i.e. "soccer" or "football"); it's [SMS] Great Soccer (Japan)
14. TENNIS / 14. 網球 (i.e. "tennis"); it's [SMS] Super Tennis (USA, Europe)
15. GREAT BASEBALL / 15. 超任棒球 [typo for 超仼棒球, i.e. "super baseball"]; it's [SMS] Great Baseball (Japan)
16. PIT POT / 16. 英雄救美 (i.e. "hero saves the beauty"); it's [SMS] Fushigi no Oshiro Pit Pot (Japan)
17. COLUMNS / 17. 寶石方塊 (i.e. "gem cube", a name by which Columns is sometimes known in Chinese); it's [GG] Columns (Japan) (En) (Rev 1)
 8. PENGO [typo for 18.] / 18. 企鵝推水 (i.e. "penguin pushes water"; possibly typo for 企鵝推冰, i.e. "penguin pushes ice" or "Pengo"); it's [GG] Pengo (Japan) with one byte changed
 9. WOODY POP [typo for 19.] / 玩具磚王 (i.e. "toy brick king"); it's [GG] Woody Pop (Japan) (En)
 0. JOE MACHINECUN [typo for 20. JOE MACHINEGUN] / 20. 機關槍掃射 (i.e. "machine gun strafing"); it's [SMS] Comical Machine Gun Joe (Japan)

Some character choices suggest a possible Hong Kong origin, e.g. 電單車 for motorcycle.

In each game the cartridge supports Sega-compatible mapping using (at least) registers FFFE and FFFF.

Pushing the button advances the cartridge to the next game. The cartridge usually starts up on game 01, though not always. Given the apparent lack of a software-accessible mapper, the ROM dump was constructed by concatenating all the parts in order.

ROM fingerprint information:

1.0M Super Gear 20 in 1 [Ninja Gaiden] (Unl).gg Checking for export header with matching CRC... NO sha256:b779182b16b19de77c832987df75788f21c21a3c930731623d4916783b133d5d Super Gear 20 in 1 [Ninja Gaiden] (Unl).gg sha1:5a57e88e4f5129771d5ad609aa5a5e4759c77859 Super Gear 20 in 1 [Ninja Gaiden] (Unl).gg md5:2163b185b758f072eeb946734f411bd5 Super Gear 20 in 1 [Ninja Gaiden] (Unl).gg mekacrc:376AE3342E2149B0 Super Gear 20 in 1 [Ninja Gaiden] (Unl).gg crc32:696b1789 Super Gear 20 in 1 [Ninja Gaiden] (Unl).gg

128K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-01-ninja-gaiden-128k.gg Checking for export header with matching CRC... NO sha256:c97821952624b660a8e785966042e17e85be28fd90c01e3a40b09ff8394e94ad Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-01-ninja-gaiden-128k.gg sha1:53fad0e2a180d0add8497f0195fd35537f508afb Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-01-ninja-gaiden-128k.gg md5:43174663563199c6a0e7a47719703888 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-01-ninja-gaiden-128k.gg mekacrc:4B1A5BE482A63301 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-01-ninja-gaiden-128k.gg crc32:4ed37a63 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-01-ninja-gaiden-128k.gg

128K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-02-halley-wars-128k.gg Checking for export header with matching CRC... NO sha256:af245727b846b3d13f9f6c4ba6977537408925074a17c44456448779f0953607 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-02-halley-wars-128k.gg sha1:1c9932f592bb12e61acf597985e0bd5041e45da5 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-02-halley-wars-128k.gg md5:9b26a17f41f2f0dc508d0815945e2634 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-02-halley-wars-128k.gg mekacrc:1F25824E7BFAA5D2 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-02-halley-wars-128k.gg crc32:def5a5d0 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-02-halley-wars-128k.gg

128K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-03-heavyweight-champ-128k.gg Checking for export header with matching CRC... NO sha256:d990ebd322393050382ed5b44f108e959605a4a59d38dfcd8e231e6f81ea3d8e Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-03-heavyweight-champ-128k.gg sha1:7cfd703ebdab4b2665f402adeac0060740615b6c Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-03-heavyweight-champ-128k.gg md5:b963441c5edad8396b857a9ad8448995 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-03-heavyweight-champ-128k.gg mekacrc:BFF25E2CEA4F8C00 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-03-heavyweight-champ-128k.gg crc32:beed9150 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-03-heavyweight-champ-128k.gg

128K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-04-alien-syndrome-128k.gg Checking for export header with matching CRC... NO sha256:2ccac0ba78ce294a28c041e1e2ce1555093160150df0bb5ba8b2c411601e8491 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-04-alien-syndrome-128k.gg sha1:b72e54493bfa7f13883a608bcf8c9f315dd490ca Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-04-alien-syndrome-128k.gg md5:df495096e2d7ff9e2c13945e2a2bacba Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-04-alien-syndrome-128k.gg mekacrc:8E692D2511E6F5CB Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-04-alien-syndrome-128k.gg crc32:ffe4ed47 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-04-alien-syndrome-128k.gg

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-05-astro-flash-32k.sms Checking for export header with matching CRC... NO sha256:bf22972cc6e88a0eb3a6f2e483fa769ba4a5573edfe421dbfa75a6697053bef7 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-05-astro-flash-32k.sms sha1:94a0c358ef4e4c13ae2dc03558a0d5f46a28efd9 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-05-astro-flash-32k.sms md5:9d9aac5b483d3e750ba120959aaaac20 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-05-astro-flash-32k.sms mekacrc:2D22172DD72A88E4 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-05-astro-flash-32k.sms crc32:ea5692a8 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-05-astro-flash-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-06-seishun-scandal-32k.sms Checking for export header with matching CRC... NO sha256:5c86b5f3531518e20bb875a05e26430aa3fbd3d162164da807826eb4bc4b262c Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-06-seishun-scandal-32k.sms sha1:6942f38e608cc7d70cf9cc8c13ee8c22e4b81679 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-06-seishun-scandal-32k.sms md5:fb2ad2524646bd069e3ec1b51fd7eb39 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-06-seishun-scandal-32k.sms mekacrc:A2297AFAC9472988 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-06-seishun-scandal-32k.sms crc32:f0ba2bc6 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-06-seishun-scandal-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-07-spy-vs-spy-32k.sms Checking for export header with matching CRC... NO sha256:e3df51893d16e512cadf3723a58f143dc679127fbe4444662be63fafb4b2a777 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-07-spy-vs-spy-32k.sms sha1:c5e004b34d6569e6e1d99bff6be940f308e2c39f Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-07-spy-vs-spy-32k.sms md5:2a6ee78e2617886fe540dcb8a1500e90 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-07-spy-vs-spy-32k.sms mekacrc:440AA3B0518BF192 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-07-spy-vs-spy-32k.sms crc32:d41b9a08 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-07-spy-vs-spy-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-08-bank-panic-32k.sms Checking for export header with matching CRC... NO sha256:1cbb449b665c4766ef5faa1983995c066e91621dc7dd68955de7b800b0590d00 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-08-bank-panic-32k.sms sha1:70e07afaa6633938124add8cdb476f1bc69f2de0 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-08-bank-panic-32k.sms md5:97b2bd168b9b41b7a693c199cab9d3ca Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-08-bank-panic-32k.sms mekacrc:D7A23BCA59CD77E5 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-08-bank-panic-32k.sms crc32:11d816cb Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-08-bank-panic-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-09-teddy-boy-blues-32k.sms Checking for export header with matching CRC... NO sha256:42de9fc6028da76b4991ba81b3a666c9ae303e269d8f55c715f6518dcadb8773 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-09-teddy-boy-blues-32k.sms sha1:fb61c04f30c83733fdbf503b16e17aa8086932df Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-09-teddy-boy-blues-32k.sms md5:de5d6c9e1349844b74f53caaf2af680b Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-09-teddy-boy-blues-32k.sms mekacrc:BBE8D843FF8FF6BE Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-09-teddy-boy-blues-32k.sms crc32:316727dd Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-09-teddy-boy-blues-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-10-ghost-house-32k.sms Checking for export header with matching CRC... NO sha256:c01f783f10fd4350816932e367bc9439b47e2ee1034a3179dcd93d660deecf43 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-10-ghost-house-32k.sms sha1:051e74c499c6792f891668a7be23a11c2c4087af Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-10-ghost-house-32k.sms md5:89028bfb152a553adf25668649d39ca6 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-10-ghost-house-32k.sms mekacrc:827C30E5ED689206 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-10-ghost-house-32k.sms crc32:c0f3ce7e Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-10-ghost-house-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-11-satellite-7-32k.sms Checking for export header with matching CRC... NO sha256:3e659f15fbcc6511dfeb2112762074a8441479bb33887d196eb343e124d14fe5 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-11-satellite-7-32k.sms sha1:88fc5596773ea31eda8ae5a8baf6f0ce5c3f7e5e Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-11-satellite-7-32k.sms md5:eac6a843975c50e39eb32f764da2a5ac Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-11-satellite-7-32k.sms mekacrc:ABFBCE1810529280 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-11-satellite-7-32k.sms crc32:16249e19 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-11-satellite-7-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-12-hang-on-32k.sms Checking for export header with matching CRC... YES sha256:0d35d0e232d64e714fa5d07e45acaf01ea9fb5a8f88fe9ac8018719ac2818d6f Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-12-hang-on-32k.sms sha1:e601257f6477b85eb0b25a5b6d46ebc070d8a05a Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-12-hang-on-32k.sms md5:2864be0d35269c5030a7f297f70e3ac3 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-12-hang-on-32k.sms mekacrc:F0A23277115075EF Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-12-hang-on-32k.sms crc32:071b045e Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-12-hang-on-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-13-great-soccer-32k.sms Checking for export header with matching CRC... NO sha256:b2a524164e1a0a264dc4ac7cb29742293b3384b9369e0ce0cf2ab5ca2b50a1cd Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-13-great-soccer-32k.sms sha1:110536303b7bccc193bef4437ba5a9eb6fd4ac8e Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-13-great-soccer-32k.sms md5:0ed883302e87ca46c1c1a55660e17900 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-13-great-soccer-32k.sms mekacrc:68A3CEF02BC61B2B Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-13-great-soccer-32k.sms crc32:2d7fd7ef Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-13-great-soccer-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-14-super-tennis-32k.sms Checking for export header with matching CRC... YES sha256:5fb097b508a482c29f12c2203a0a98a0dd7ce9873e7ef12fb7e0aeea250a99e2 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-14-super-tennis-32k.sms sha1:67787f3f29a5b5e74b5f6a636428da4517a0f992 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-14-super-tennis-32k.sms md5:2db9404fe79593fd2379921ca822103a Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-14-super-tennis-32k.sms mekacrc:F799F9C458560EF7 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-14-super-tennis-32k.sms crc32:914514e3 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-14-super-tennis-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-15-great-baseball-32k.sms Checking for export header with matching CRC... NO sha256:84a62928d7a231657db0a5d77efa77eebda9f5cbefb5d5a68af64af2ecdb88fd Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-15-great-baseball-32k.sms sha1:e6eaaec61bec32dee5161ae59a7a0902f0d05dc9 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-15-great-baseball-32k.sms md5:94ca79d4eb2709ad98b850d33728a045 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-15-great-baseball-32k.sms mekacrc:9F82F97234F38CC1 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-15-great-baseball-32k.sms crc32:89e98a7c Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-15-great-baseball-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-16-pit-pot-32k.sms Checking for export header with matching CRC... NO sha256:be7c284c39c1e18e53f7a97d3950caf93550783cdddcdf9324f9b209353682b9 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-16-pit-pot-32k.sms sha1:b1afa682b2f70bfc4ab2020d7c3047aabbaf9a24 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-16-pit-pot-32k.sms md5:209ee37dcabc263aa462c781d3123fce Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-16-pit-pot-32k.sms mekacrc:B637976CB4B28D1D Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-16-pit-pot-32k.sms crc32:e6795c53 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-16-pit-pot-32k.sms

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-17-columns-32k.gg Checking for export header with matching CRC... NO sha256:9e0a2b9c2af94bdfc95ca5c884fdf40ac9178388a6e8a36ccac263492ad74781 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-17-columns-32k.gg sha1:d83fd16bd23c51750555a692535daa171ed41af0 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-17-columns-32k.gg md5:36b33d28235b4c9439ab0f62ab1c97c4 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-17-columns-32k.gg mekacrc:C8F45DEC67DF2095 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-17-columns-32k.gg crc32:ac37e092 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-17-columns-32k.gg

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-18-pengo-32k.gg Checking for export header with matching CRC... NO sha256:e1051bba30d7b681b7d7a17f9ea280daf1ed1f9f9184f24a5a88afc536c5d1c1 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-18-pengo-32k.gg sha1:5f1c16d637ff94147ab93690a7acf0a3da7c1155 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-18-pengo-32k.gg md5:6254d1c010a646fa73142b7c344b31bd Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-18-pengo-32k.gg mekacrc:593C7A3470EED48B Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-18-pengo-32k.gg crc32:189e02fa Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-18-pengo-32k.gg

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-19-woody-pop-32k.gg Checking for export header with matching CRC... NO sha256:b6b639dcfa1492b5616b83ae4ac8b76ded84c449161291964a2fc3db0f3fb1a2 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-19-woody-pop-32k.gg sha1:9e7defda6873b7bca5650fad4426a6fb443522d8 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-19-woody-pop-32k.gg md5:c017baf7fa0de71219dfab91caa59f8f Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-19-woody-pop-32k.gg mekacrc:902D4CDEE014FD28 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-19-woody-pop-32k.gg crc32:9c0e5a04 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-19-woody-pop-32k.gg

32K Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-20-machinegun-joe-32k.sms Checking for export header with matching CRC... NO sha256:ea9c74555e551974a681296c41972c1f6ddd7289fed5502f64e35b8527b6dde4 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-20-machinegun-joe-32k.sms sha1:33c21d164fd3cdf7aa9e7e0fe1a3ae5a491bd9f5 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-20-machinegun-joe-32k.sms md5:2d59b3d27f022b04a597e767e6660ca9 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-20-machinegun-joe-32k.sms mekacrc:59868AC9BD4815B4 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-20-machinegun-joe-32k.sms crc32:9d549e08 Super Gear 20 in 1 [Ninja Gaiden] (Unl)/gear20in1-20-machinegun-joe-32k.sms

The modified part of Ninja Gaiden compared to the official release:

--- Ninja Gaiden (Japan).hex	2023-01-28 16:28:47.000000000 -0800
+++ gear20in1-01-ninja-gaiden-128k.hex	2023-01-28 16:28:47.000000000 -0800
@@ -2030,7 +2030,7 @@
 0007fd0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 *
 0007ff0 54 4d 52 20 53 45 47 41 00 00 00 00 15 32 00 5f
-0008000 80 0f 00 0f ff 0f 00 00 00 00 00 00 00 00 00 00
+0008000 80 0f 00 0f 00 0f 00 00 00 00 00 00 00 00 00 00
 0008010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 0008020 80 0f 00 0f ff 0f 00 00 00 00 00 00 00 00 00 00
 0008030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

The modified parts of Astro Flash compared to the official release:

--- Astro Flash (J) [!].hex	2023-01-28 16:27:18.000000000 -0800
+++ gear20in1-05-astro-flash-32k.hex	2023-01-28 16:27:18.000000000 -0800
@@ -1,9 +1,9 @@
 0000000 c3 8a 00 00 15 1a 1f 2f 2a 25 35 3a 3f 13 17 12
 0000010 22 32 00 00 3f 3a 35 2f 2a 25 0b 03 02 0e 0c 08
-0000020 3e 38 00 ff ff ff ff ff ff ff ff ff ff ff ff ff
-0000030 ff ff ff ff ff ff ff ff c3 83 0f 76 80 a0 81 ff
+0000020 3e 38 00 ff f3 21 50 00 11 00 dc 01 0b 00 ed b0
+0000030 c3 00 dc 00 00 00 00 00 c3 83 0f 76 80 a0 81 ff
 0000040 82 ff 83 ff 84 ff 85 fb 86 00 87 00 88 00 89 ff
-0000050 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
+0000050 f3 21 ff ff 3e 00 77 c3 00 00 00 00 00 00 00 00
 0000060 ff ff ff ff ff ff f5 3a 00 c0 e6 0c fe 04 20 12
 0000070 3a 0c c0 fe 0f 38 0b af 32 0c c0 3a 0b c0 2f 32
 0000080 0b c0 f1 ed 45 02 00 00 81 7d f3 31 00 e0 ed 56

The modified parts of Bank Panic compared to the official release:

--- Bank Panic (Europe, Brazil) (En).hex	2023-01-28 16:38:02.000000000 -0800
+++ gear20in1-08-bank-panic-32k.hex	2023-01-28 16:38:01.000000000 -0800
@@ -1002,7 +1002,7 @@
 0003e90 0b 00 04 ff 03 00 81 01 06 03 81 01 02 ff 04 00
 0003ea0 04 ff 04 00 04 ff 04 00 02 ff 09 00 81 03 04 07
 0003eb0 85 03 01 0f 9f df 02 ff 02 f8 92 ff 7f 7f b6 b9
-0003ec0 b7 7f 2b 37 01 03 07 0b 13 13 23 21 fb 02 ff 02
+0003ec0 b7 7f 2b 37 01 03 07 0b 13 13 23 21 fb 02 ff 22
 0003ed0 ef 8c e7 e1 ec 41 41 81 83 93 95 8d 84 ec 03 fc
 0003ee0 03 fe 83 ff 84 85 03 87 8a 8d 47 43 ff ff fc c9
 0003ef0 d1 89 fc 03 ff 86 3f 91 89 91 3f ff 05 21 8b 31

The modified parts of Pengo compared to the official release:

--- Pengo (J).hex	2023-01-28 16:51:08.000000000 -0800
+++ gear20in1-18-pengo-32k.hex	2023-01-28 16:51:08.000000000 -0800
@@ -957,8 +957,8 @@
 0003bd0 00 00 0e f1 00 00 e6 19 00 00 f6 09 00 00 f6 09
 0003be0 00 00 dc 23 00 00 df 20 00 00 df 20 00 00 c0 3f
 0003bf0 00 00 c0 3f 00 00 df 20 00 00 df 20 00 00 dc 23
-0003c00 00 00 01 fe 00 00 f9 06 00 00 f9 06 00 00 01 fe
-*
+0003c00 00 00 01 ff 00 00 f9 06 00 00 f9 06 00 00 01 fe
+0003c10 00 00 01 fe 00 00 f9 06 00 00 f9 06 00 00 01 fe
 0003c20 00 00 b0 4f 00 00 b7 48 00 00 b7 48 00 00 b0 4f
 0003c30 00 00 b0 4f 00 00 b7 48 00 00 b7 48 00 00 b1 4e
 0003c40 00 00 00 fc 00 00 f8 04 00 00 f8 04 00 00 18 e5