another thing you can try out for yourself is making a psuedo 3d engine using the terrain ID's. The terrain ID's correspond to the height of the coordinate. with some coding, when you approach an edge you may fall off the cliff. Done it myself, the engine is lost.For your first post, it was actually really a cool one! I tried this point last night and let me tell you, the only events on the platformer-map are the jump and fall handlers! Basically if you touch the 'sky' you fall!

- Mike