If you're unfamiliar with Kero Blaster even though it has been available for over a year, it might be because it was never released on Steam, but that all changes on November 11.
Kero Blaster was created by Pixel, the man behind the now-legendary Cave Story (a game our very own Jonathan Holmes reviewed three times). It's a pixelated Metroid-like side-scrolling shooter and it is hella fun. Don't believe me? Then take it from Holmes' original review.