|Type Of Weapon||Retro-Mutagen based blaster|
|First Appearance||The Creeping Doom|
|Last Appearance||The Creeping Doom|
Retro-Mutagen Blaster is a weapon of Donatello. This is a blaster that contains Retro-Mutagen within, which was used by Donatello to defeat Creepweed. Retro-Mutagen Blaster debuts in The Creeping Doom.
- The Creeping Doom (Debut/ Last Appearance)