Super Crate Box is a windows-only blast from the past that I could imagine playing on my Atari 2600 back in the day. Collect boxes to score, shoot or avoid baddies to stay alive. The more boxes you collect, the more weapons you have access to. Frenetically paced and harder than it looks, this is a perfect friday fun link. The trailer:

Super Crate Box from Vlambeer on Vimeo.