There are still a few weeks to go before Borderlands 2 hits the shelves, but if you're jonesing, developer Gearbox Software has created a 16-bit fix.
Called The Border Lands, the game is a retro "demake", where you fight waves of Skags and Psychos with a variety of weapons that drop from the corpses of the slain. You can play as Salvador, Maya, Zero or Axton in a browser-based mayhem of survival.
It's really easy: use the arrow buttons to move, and the space bar to fire. Once the arena is clear, in will come a wave of tougher enemies.
What's the highest score you can get? Head on over here to give it a go.