RGB Runner is a side scroller game and you are running away from chaos. Corridors have lots of portal mob and pick up.
We can change our color like red green blue with this colors our character can interact this world.
Portals are able to teleport us to other colored line, and this teleportation gives us +1 score modifire, you can stack that effect. not: if your color differ from the teleport, actually you can not pass! (it will destroy your character)
Mobs have some unique ability like jelly fish (it does not kill but just suffering). if you touch it, your character will be slowed some second. but your color does not same with it you it can not its effect on you!