Create an 8-bit version of the game that everyone can play in their browser of choice ... kill them before they kill you. As the sprite body count rises you gain more experience until you level ...

one was Peach’s 8-bit sprite from Super Mario Bros., while the other was her appearance on the Famicom box art (Bowser’s appearance on the slippers is also clearly inspired by that art).

First and foremost, they can assume that every pixel is important: early 8-bit sprites were all masterfully hand-crafted by artists, so it's safe to assume that every pixel is significant.

Create an 8-bit version of the game that everyone can play in their browser of choice. Case in point ... The rule is simple: kill them before they kill you. As the sprite body count rises you gain ...