You are One Button Bob! Epic explorer and adventurer. You have more skills than most people, the only issue you ever have is that you can only use one skill at a time. Help Bob get through the evil castle by using the left mouse button to activate his various abilities. Each screen his abilities change so make sure you figure out what the new control scheme is quickly, and use it to defeat monsters, jump over lava and dodge deadly arrow traps. You are the only thing standing in between Bob and possible certain death by using his one ability on each screen wisely.