ThatOtherPerson released Time Frack 2D for the GP2x.

Quote:

So I’m making a 2d platformer / shooter for GP2X with the ability to slow down and rewind time. Its sorta based on that other 3d game/demo/thing I did of the same name (which was a rip off of all the ideas of TimeShift which was in turn just somewhat a product of how cliche and common time controls have become… Hooray for derivative non originality!) minus one visual/spatial dimension. This one should hopefully reach a higher point of completion though and actually be something that can be called a game. Currently its far from done but the basic movement, shooting and time controls are functional. As I said it is being made primarily for GP2X (its actually being made primarily so that I have something to make primarily for GP2X lol) but there is and will be PC versions of it and I’ll probably port it over to Wii at some future point in time.

http://dl.openhandhelds.org/cgi-bin/gp2x.cgi?0,0,0,0,30,2826