Hmm...I don't remember this ending from the Team Chaotix storyline from Sonic Heroes. I'll have to replay the game again to double check.
Team Chaotix's entire story from beginning to end is my favorite over the other three. Three detectives going along with a voice from a walkie talkie to locate exactly where it's coming from while going through entire worlds and fighting Eggman's robots. The ending is hilarious to with Charmy going ham all on Eggman.
