Yeah I made my 2D walls in Deluxe Paint with the "turn 2D into transformed 3D" kinda option, it was cool. Only thing with making steps smooth is that in Dungeon Master you could run pretty fast, so the scrolling fro one place to another would need to be pretty fast. You could have cool stuff though like rotating round 180 degrees quickly (with a special key) or look up and down (esp when falling down a pit) etc.