In a strange coincidence, this summer I have designed a game that would be a perfect fit for this theme! I can't resist to share it with you if you're looking for inspiration :

Timeloop is a game where you play futuristic soccer against your past self(s)!

You'll control a blue robot who have to push the green ball into the goal to score points. Move with D-Pad and press button to Dash. Sounds simple? Well there is a catch: the whole game plays inside an endlessly repeating timeloop!

Every 6 seconds, the timeloop will reset the game. Your previous avatar will turn red, and it will move exactly like you did during the previous timeloop. You will play as another robot, always in blue. Up to 8 robots can play at the same time: your current avatar, and 7 of your previous incarnations. So, in this game you'll face the ultimate opponent: yourself!

You can get the game from here: https://drludos.itch.io/timeloop

I hope this may help those looking for inspiration.

Anyway, good luck everyone for this compo!