Ripped this from xbox.com because I couldn't work out a decent way to summarise it! Sounds odd, but addictive - like space giraffe!
The latest creation by Q Entertainment, EVERY EXTEND EXTRA EXTREME (E4) is a unique action-packed shooter. Time your self-destruction perfectly, create chain reactions by exploding enemies, and extend the game life. Enjoy a trippy, trancey clubbing experience through the combination of highly addictive gameplay, music, and sharp visuals. E4 features five exciting game modes as you collect bonus items and detonate your craft to the beat to multiply your scores.
Wildly fun gameplay: Unique, fun, addictive gameplay mixed with hip and cool original music offers a club-like experience in the living room.
Next-gen challenge and graphics: Outrageous visuals and high-quality sound add to the richness of the gameplay. There are a hundred times more enemies, a hundred times more chain reactions, and a stylish collection of newly designed visualizers all exploding in high definition with 5.1 surround sound support.
Multiple game modes: Play E4 The Game Unlimited, a reverse action-shooter where the goal is to self-destruct, create large chain reactions of explosions by defeating enemies, and extend the life of the game by collecting the items they leave behind. Other game modes include E4 The Game Limited, that challenges with a Time Attack version of the main mode. Take on R4 The Revenge, a genuine shooter with up to 100 stages. And go head to head in H4 Versus Live, against other players on Xbox LIVEĀ®.
Your own music: Add your own music in the S4 Wiz Ur Muzik mode. Enjoy a customized E4 gameplay experience by adding your own tracks and playing to your favorite music.
It's available for 800 MS points anyway!