Chronos Twin: One Hero in Two Times for the Nintendo DS
Excellent platformer only released in PAL regions and is really under the radar. The graphics are nothing to brag about, but the game is exceptionally well done and difficult to boot. Basically you simultaneously control one character moving on both screens. Each can affect the other. If one has a lava pit over him that is too far to jump across, you may realize the other character has a platform he can jump to on his screen. The character over the lava pit will then be suspended above because the other character on the other screen is standing on a platform. Confusng huh? Here's a gameplay video:
The same developer went on to make Little Red Riding Hood's Zombie BBQ, which is another fantastic game that went way under the radar. I recommend both very highly.








