I have it in my game, that if you go up to your horse and press the spacebar, you will get on the horse. What happens is the player's graphic is changed to the one of him on a horse. I want it so that if you are on the horse, and you press A, you will get off of the horse. I know that I could make it where there is an event in every room and if you press the A button, you get off the horse. This would be a lot of events though, and I would rather not put an evnt in every room.