From Steam:
The title says it all. Take one part falling block puzzle game, combine one part old-school platformer, add a couple thousand pixels, blend and serve. Why match colored blocks when you can just shoot the hell out of them? Your goal is to survive as long as you can. From celebrated indie developer Andrew Morrish and Adult Swim Games.
Try it here!
Buy it here.
A quick look. Northernlion has a lets look at up as well.
Yes it has Steam achievements, local multiplayer and seems hard as hell.