Pro Rarely seen gameplay mechanic that combines multiple playthroughs
Each level is played through multiple times with every new playthrough adding previous playthroughs alongside current one. This is done 4 times trying to complete as much of the level as possible. It essentially creates a solo co-op experience and allows for lots of strategical planning forward.
Pro Vibrant aesthetic
The game has simple, clear, blocky levels and uses bright colors. There's an Iron Man inspired hud, but that can mostly be ignored, unless for checking out the score, as enemy count information is displayed on the walls of levels and there's no need to keep track of health or ammo.