Vlambeer's Super Crate Box

You are a character with a weapon in a platformer level, there is always one crate for you to collect, these give you points and a different gun each time. At the same time enemies come down from the top (instant KO if they touch you), when they reach the bottom they come back out the top angry and fast. So dodge and shoot the enemies while collecting crates for points, simple. (Also it's free go download and play it.)