|Type Of Weapon||Explosive Mutagen-based collar|
|Origins||New York City|
|Abilities||Detonate Mutagen containers to mutate the user of the collar.|
|Wielder(s)||The Shredder • Dogpound • Fishface|
|First Appearance||Mikey Gets Shellacne|
|Last Appearance||The Lonely Mutation of Baxter Stockman|
Mutagen Collar is a weapon wielded by The Shredder, Dogpound, and Fishface. It is an explosive, metallic collar with Mutagen containers strapped around it, which was used on Baxter Stockman in order for him to not betray The Foot Clan once again. Mutagen Collar debuts in Mikey Gets Shellacne.
Inside Baxter Stockman's Lab, Dogpound, Fishface, and Baxter Stockman were discussing on Stockman creating a Retro-Mutagen for their mutations. Baxter, who wanted to buy some time and stay alive, lied to the mutant duo to make them believe that he would help them in a cure. Thanks to Stockman's agreement to cooperate in "curing" them, Bradford puts on collar on Stockman with Mutagen containers around it. This collar, which was made by The Foot Clan, would be detonated on Stockman if he betrayed The Shredder once again.
- Mikey Gets Shellacne (Debut)
- Wormquake! Part One
- Wormquake! Part Two
- The Lonely Mutation of Baxter Stockman (Destroyed/ Last Appearance)