Make the collider smaller and it'll be more playable. Right now, it feels unfair when the visuals of the player don't touch at all the visuals of the enemies but I'm still hit with game over as soon as some large invisible box or circle touches. Also the units seem fairly large and I can't quite see enough of the sky to make wise maneuvering decisions. Congrats for completing a jam game! Think of the lessons you've learned here and build on that for the next one. Think of how you could add features to this one, adding mechanics like shooting, an ability where you can slow down time, ghost through an enemy, etc.