Frankly, I'm pretty god-awful at shooters, but something about the atmosphere you all created here compelled me to really try and beat your game! I've played for a couple hours now but I can't get past the 5th stage! I'm probably gonna keep trying even after the jam is over haha.
In any case, really lovely work. I maybe had some slight performance issues? but that's totally on my end and not a major flaw. Great little UX feature with the letter dissolving animation playing exactly when you complete the mission -- no guessing 'was that a headshot?'. I personally would have cranked up the timeslow a little bit more per rotation (especially for noobs like me), and made it renew at the end of each new rotation, but I understand that there's a difficulty balance to be struck (i.e. the 3rd stage is more difficult precisely because after 720 and 1080, the time scale is far more back to normal.
In any case, these are minor grievances. Full marks from me!