1.Because I already have a lot of events for my other bosses, I'm not sure how much lag would be created because of Clappy "moving". It may be fine though.
EDIT:5. also, I think you should make it so you can see Clappy die.(you teleport pretty fast)
I'll try to use less events. Unfortunately, the reason you don't see him die is because there are too many events. So, can't have a boss and kill it too unfortunately.
4.Arent I suppost to die when I touch the lava?
Heh, I remembered that I forgot when it was too late

2.The "run away!" attack should give more warning to allow the player to run away. I've also found that it sometimes keeps sucking you in after he moves back to the normal position.
That should only happen if you die, and then immediately go back in to the area. This is because it auto-resets his position when a player walks in. If you wait ~ 12 seconds (which a player will need to spend at least that getting to the area), it shouldn't happen.
I will make the 'run away' pop up sooner though.
3.Some sort of events keep me from going in the "bot spawn" area(I suspect setRadiusImpulse), but I've found that I sometimes get pushed in that area, and I can't get out. I suggest using zone events instead. OnPlayerEnterZone>Player>setVelocity>[enter velocity here]
This would allow the player to exit if he somehow got in. Instead of being stuck. I'd also suggest having this on the bot spawn.
OnPlayerTouch>Player>setVelocity>[enter velocity here]
This would be so if they got in and somehow stayed in, they would get pushed out.
You get stuck in there? Weird...
I'll figure something out.
Thanks for the critiques. Even if you don't add it, it was fun to make.
Edit: I duno what you should make for the final boss... Maybe you should make one of those bosses that take out pieces of the floor over time or something.
Edit 2: Just remembered. When I was making this, I had the event quota at 300. I only got overflows with my original 'dying animation' for Clappy. I may be able to refine this some more, but a 300 quota should play nice with the other boss battles.