Good job on your first game jam! I'm glad that you got together a game and submitted it on time. Do not forget to add some instructions to your game jam page as well as screenshots. They really make the game more visible to others so you can get more feedback!

Well done!

Idea was good but you should give player some tips what to do at start or write it on game page. There is few things that can break game like spaming space just crushed my pc. Also you can spam space and do nothing else and destroy all enemies. Don't get it wrong, this is jam and we all are here to learn something. Good luck in next jam! 

I would recommend adding instructions to the game page as it isn't obvious how the game works.

If I understood correctly the idea is to survive a certain amount of time and you can roll which may create more hazards and may create more useful things like health. That idea seems neat and fits the theme of the jam well.