pcsx2 Rockman Power Battle Fighters [NTSC-J] Bug makes game unplayable.

PCSX2 version: 1.5.0 49b91ea

PCSX2 options: Default

Plugins used: Default open gl and direct.

Description of the issue: When playing this game in PCSX2 you can't charge your shots or jump properly, it's like all the buttons are stuck on an auto-fire/turbo mode, yet they aren't. I've struggled with this in the settings to no avail. I've tried all I can think of, including changing the gamepad plugin and using the japanese bios, it looks like an emulation bug. A shame really because this game is a lot of fun for coop and the exclusive versus mode. You can change the language to english too.

How to reproduce the issue: Just boot game, start a stage and press the fire or jump buttons.

Last known version to work: It has never worked properly

PC specifications: CPU: Intel Core i7 8750H GPU: Nvidia GTX 1050 windows 10

Oct 14 '18 19:10 blackman91

Did you retry the suggestions listed in the original bug report?

https://forums.pcsx2.net/Thread-Pushed-Bug-Report-Rockman-Power-Battle-Fighters-NTSC-J

Oct 17 '18 18:10 MrCK1

Yep, still doesn't work.

Oct 17 '18 18:10 blackman91

@blackman91 can you please retest on latest dev build. Thanks

Dec 16 '20 08:12 MrCK1

Bug is still present in latest 1.7.0. I wasn't able to track what's going on, but for sure that's weird bug. Like prafull mentioned in forum post, setting SPU2 to async mode make things better. I made patch that can be used as a workaround even with time stretch setting, but this for sure need some proper fix.

CRC=45c3e791

// Return from DIntr regardless of EIE status after 2048 cycles. patch=1,EE,0010d64c,word,24020800 patch=1,EE,0010d650,word,2442ffff patch=1,EE,0010d654,word,1440fffe

Edit: Surprisingly patch work fine, and not cause any issue to both games. :) I was able to finish both parts at least 1 time.