Each crate contains a different gun, and picking up a crate automatically switches your weapon to whatever you pick up. Use the keys to move, to jump, and to shoot.
The object of Super Crate Box is to jump, shoot, and scramble your way across the level to reach randomly-placed crates. Sure they might have some other purpose, but what fun are they without these essential little elements? Fortunately, Super Crate Box from indie developer Vlambeer is a free retro-styled platform shooter that has more guns than you can shake a stick at in the time it takes to play. A shoot-em-up game without guns is like a library without books, or an office chair without wheels.