|Gimmick Mountain Zone did not originate from fanon. This article can be edited freely by everyone in the community.
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Gimmick Mountain Zone makes an appearance in Sonic Heroes 2. In this game, the mechapolis has been torn out and all hazardous electricals excised. Here, it is a place of living and operates as a standard house for Team Rose. Needless to say, then, they were most upset when Dr. Eggman smashed his Egg-O-Matic into the side of it, blowing a hole into it; they went to summon Tails and Cosmo to repair it, and when they get back they find Team Dark and Team Badnik busy fighting each other. In addition, Team Sonic used the peak of the zone to jump on to the Egg Carrier.