Fixed Sea Egg dummies don't disappear after defeat sometimes

For some reason, Eggman's dummies didn't self-destruct/flee/whatever after I defeated him this time.

This happens if you hit the real Sea Egg before his clones come out of the pipe, which tends to happen when the real one chooses the center pipe.

If you hit him like this and he doesn't die, he will have extra clones until you hit him again or his next shooting phase times out.