I had a lot of fun with this.
Definitely reminds me of my old flash days!
As mentioned, controls are a bit less intuitive. My favorite jump button is spacebar, personally - and in this case it would really help you hold down something for the controls.
I would do this:
Spacebar - jump
A/D - left and right
Mouse/click - point/shoot
Being able to aim I suppose would change the dynamic of the game, but would make it more fun to me, at least.
Aiming as a feature was something i messed around with, but i'm not sure if it could really fit, as it would probably break the level balance (from all the precise spots, though i might be able to remedy some bits with limited ammo and some arrow only/player only walls. It would make the game more about precision shooting, though that would be quite interesting)
I've added some alternative keys in a new build, for arrow key and spacebar users, will submit it after the jam finishes :]
