If you got ideas for challenges please share them here. I only came up with those 6 and they are mostly pretty same-y. They don't need to be super hard, I'm not looking to make an impossible game. :P
Controls:
arrows -> move and aim
z -> shoot
x -> lock aim to current direction
x (tap quickly) -> jump
Changes for 0.4.1
Help:
Pickup the gray boxes for randomly generated weapons. There are no ammo refills.
Weapons' properties can be determined by looking a the gun's barrel(s). See if you can figure it out.
Enemies can be killed by pushing them into the spikes or by shooting them three times.
Old stuff:
Changes for 0.0.3
Changes for 0.0.2
I just started throwing stuff together without a clear plan. It might be going somewhere. Still very much work in progress.