I uploaded an earlier version of this a couple of weeks ago in WIP. I think I'm done with the game now so I thought I'd upload where I got to with it.
Just shoot the green things before they get past you
two kinds of random upgrades drop randomly from green things too.
Game + Source code: https://www.dropbox.com/s/xws220cgqg1rkze/Splatter.zip
Ps. I really want to try to make a side scroller next but have absolutely no idea where to start in terms of building the tile maps and collisions! Would REALLY appreciate any guidance
Move -LEFT and RIGHT
Shoot normal weapon - SPACE
Shoot special weapon - CONTROL