Question: what do seven friends who work all day making games do when they get home? Answer: Make more games!!
Metrozone is our 2008 Dream Build Play entry. It's Ikaruga meets Tempest - basically you race down this tube, shooting and dodging things - you collect powerups from killed enemies and try to run over as many power strips as you can (they increase your score multiplier)... so it's very Tempest in that sense, but also, at any time you can flip to the outside of the tube where there might be easier enemies, more powerups, or death. Survival can only come from knowing when to flip (like Ikaruga).
Metrozone was developed throughout the course of several nights and weekends, and it was just mad amounts of fun to make. Here's a gameplay video: