Provide more rest for players

[nitaku]

Playtesters report stress or even strain sometimes. Maybe the gameplay is too tight and intensive. We should provide players more rest:

• [ ] Remove/rework minigames that are too intense on a single repetitive action (e.g., race)
• [ ] Add more "no respawn" games (rest until next match)
• [ ] Let ships stop somewhere somehow (rest/hide until you are done/found)
• [ ] Add the "time freeze" powerup (other players rest until it ends)
• [ ] Add "intermission" levels between matches
• [ ] Add more "can't do any better than this" games, like single choice games (e.g., sector claiming) or finding yourself (related to #654)
• [ ] Slightly increase respawn timers