Great concept! It's a fun game, but I think using Q/R for gravity control would be better than F/R. I also encountered a bug/issue in one of the levels where I got stuck and couldn't finish the game
I am so sorry about the bug, I will fix it in the update. And also about the keys, I am changing it to Q/E cause I've heard a lot of people telling me F/R are not the right keys. Thanks for playing my game!