Thanks!
It was really important for us that the main game loop feels good, I tried my best to make picking up, aiming, and throwing the bomb feel as satisfying as possible (I like it in games when time slows down a little to give you time to aim).
It does get hard quickly because it's a jam and we didn't want people to lose interest and get bored too quickly, so the real game starts around about 20 seconds in.
[I don't know how to mark-as-spoiler here so here are some details to help you survive longer without bumping into bats]
A bat grows when you enter their hearing range (you can see how far each can hear by their aura light), and when there's a bat on the other edge of the screen you get a faint red light in that direction (meaning, if there's a bat on the bottom left corner, you'd get red faint light on the top right one to warn you not to cross, or that there's a bat about to cross that border).