My plan for this weekend is to implement the shop and unlockable items. Along with hats you can buy for Blocky Man, there are three unlockable characters:
Stompy - Has a gun so you can shoot enemies when you're playing as Stompy.
Commander Awesome - Can run faster and jump higher than other characters.
Blocky Dude - A Cheap rip-off of Blocky Man. Runs slower and can't jump as high as Blocky Man. Playing as Blocky Dude is kind of like a challenge mode after beating the game.
I hope this will add some replay value to the game, so the game can be played through as the other characters.