I just felt that this game needs some love here on the GB boards. Teleglitch is a fantastic little game that feels like a combination of Binding of Isaac and Crimsonland. The weapons feel really satisfying and are all quite different. I don't think the developer's first language is English so the writing is a bit strange sometimes but its got a creepy touch to it.
The demo is available here: http://teleglitch.com/index.php?page=demothe full game is about $12.