It could just have a dead battery. If the battery isn't the problem, probably so.
it is broken
put it on charge
its broken.
it's broken.
I think its broken
Something else is broken.
It doesn't respond to touch, the screen is white, it wont turn on,
Well it ussually means that it is dead but if not then its probably broken.
you can do a back handspring but it will turn out sideways it wont be straight and it wont be as great as you have done before
You should report this to the phone company. If you still have a warranty on it you can get it replaced. If not then it is probably dead.
get a new one...
your leapster wont turn on because it probably needs new batteries and if that's not the case then it is probably broken.