Okay this is what I was doing. I was seeing want it would look like if I added dust. Basically when you step on a combo, it would go to the next combo and then cycle the dust going up. It looks good however, I found a screw up while messing with it:
When you have Step -> Next combos next to each other and you walk across them, they won't Animate until you stop walking on Step -> Next combos. So basically if I was to walk in a straight line and down and up, etc. There will be a big dust cloud on every tile that I walk on until I stop walking, then they will all cycle like normal.
I know this is a bug because of this: The falling floor. If you were to make the falling floor where you step on the combos and the floor falls behind you, it wouldn't work. Because the combos would not cycle to the falling floor until after you stop walking.
If you need to know, this is how the combos were set up:
(ground -- Step -> Next combo) -> (cycle first part of dust -- frames 2, speed 8) -> (cycle second part of dust -- frames 2, speed 8) -> (Back to ground --Step -> Next combo)