You could either use game maker or you could make screenshots of the maps, and use them as panorama graphics. Then just make the 4dir. movement so that you can only move left and right, and at platform you need to jump on to: event- set move route player- jump(up to you where to, ex.: x2 y-2)
I've done this in a game myself, it is for a crappy game review (for who knows them, else type drakiyth in youtube search) so that's why the game isn't worth be called a real game, you can take a look at it,
http://www.megaupload.com/?d=RAP0UY9O <- it's the game.
You'll find it after playing 2 levels, you'll see it as a platformer. I'd say use it as an example(except you can only look at it, you can't really see how I've done it, that's why I explained it above.)
Hope it helps you