Allright, I don't have time to do anything now BUT I managed to whip out an old source file I made when I was first thinking about this.
so, you can download it
HERE (just left-click the link)
not much to see here (if anyone complains about graphics... well, you're right :P )
so:
Left/Right Arrow Keys- move
1 (number 1, NOT NUMPAD 1!)- jump ability
2- sprint ability
3- climb ability
4- no ability
Space- perform action
so, press 1, 2 or 3 to activate ability and then space to perform it.
note: to climb you must be close to wall and facing it.
oh, yeah, and you can fall off the screen... try not to... if you do, well, close the game and start over
so, no "icon collection" or anything like that yet, but this is the basic idea.