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.
Quantum Conundrum - Quantum Conundrum is a First-person Perspective game with strong Sci-fi, Puzzle-Platform, and Single-player elements published by Square Enix and developed by Airtight Games.
EDGE Extended - EDGE Extended is an awesome, Arcade, Puzzle-Platform, and Single-player video game developed and published by Mobigame S.
Portal - Financial Aid Award Letter, - Messages and Calendar, - Grades.
Megatroid - Megatroid is a gorgeous, Action-Adventure, Puzzle-platform, Side-scroll, Sci-fi, and Single-player video game developed and published by Triolith Entertainment AB.
GlPortal - A free open source game with teleportation.