Electronic Super Joy is an awesome platformer set to some killer electronic music. It's both addictive as hell, and pretty damn challenging too. Developer Michael Todd thinks of the game as "an unholy merging of Super Meat Boy & Super Hexagon." Sounds about right.
The game is now available via the Steam Early Access program, and it can be grabbed for $5. You save $3 here, as the launch price will be $8 once it releases for the PC, Mac, and Linux.
You can expect this one to come out for iPad and Android down the line too.