Game description: (Now open source!) A 2D puzzle platformer that requires lateral thinking to solve its easy, medium, hard, and fiendishly difficult puzzles. Based on the award-winning Portal, and created using GMPhysics, t... (more)

Game description:

(Now open source!)
A 2D puzzle platformer that requires lateral thinking to solve its easy, medium, hard, and fiendishly difficult puzzles. Based on the award-winning Portal, and created using GMPhysics, this logic game brings original gameplay mixed with realistic object interaction to the table. Music courtesy of 4One.

If the game crashes on startup because of physics_init_control_obj, then it means that your computer is missing two of the C/C++ libraries that GMPhysics uses called "msvcr71.dll" and "msvcp71.dll". Simply download them here (http://www.dll-files.com/dllindex/dll-files.shtml?msvcr71 and http://www.dll-files.com/dllindex/dll-files.shtml?msvcp71), extract them, and place them into your windows/system32 folder, and it should work fine.

Note*: the time required to earn blue medals is based on my fastest play-through of that particular level. Don't get frustrated if you can't earn the blue medals right away. Click the timer icon on the title screen to activate a level clock if you wish to improve your times.

For a video of gameplay and links to the source download:
http://youtu.be/GkXkbqjVTpc