We don't hate people that need help with C2 lol. You need a condition that blocks the other one out. All actions run at once when it is true and from top to bottom in C2. You need to put in a condition on the left, something like on clicked if changeplayer is 0, set changeplayer to 1. And on event 3 you need if changeplayer is 1 set changeplayer to 0. However, because they run top to bottom in C2, you're going to find that it looks like nothing is happening because event 1 is true then event 3 is true. Usually for this i add a wait of 0.1secs on the actions on the right hand side.