http://foolmoron.io/#retroverse

http://www.desura.com/games/retroverse

A 2D XNA-based arcadey action adventure game where you escape a prison while collecting gems, killing guards, acquiring powerups, and saving other prisoners along the way. Full 360 controller integration! Single Player or Two-Player Co-op!

Requires: Windows XP or +, DirectX 9.0 (PS 2.0), at least one 360 gamepad for co-op (most keyboards dont work when many buttons are pressed at once) Building: Visual Studio 2010, XNA 4.0