Metal Slug - The definitive, side-scrolling bullet hell platformer.
Alex the Allegator - Alex the Allegator is a series of games that I, Johan Peitz, usually use for game coding challenges...
Mark of the Ninja - Mark of the Ninja is a fast-paced Action-Adventure, Side-Scrolling, Platform and Sword fighting video game that lets you be a skilled Ninja who embarks on an epic journey to defeat the enemies who attacked on his DOJO.
Super Meat Boy - Let's start with what's the same: Dr. Fetus is still a jerk, gameplay is super challenging but fair, there are tight controls and great levels and you will die. a lot.
Rochard - Rochard is an Action-Adventure, Side-Scrolling Platform, and Run and Gun video game set in a Sci-Fi environment.
Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.