The Dink Network

I think I've played it as far as it's finished... I've gotten the fireball and I'm supposed to do 'something' with it? Is this where it ends? I've talked to everyone, seemed to go everywhere and kill everything, and I've backtracked as far as possible...

Edit:Nevermind I got it now, I didn't like how you have to do it though

Edit 2: Finally beat it. It was a fun little DMOD. I think it was good for a first