In Super Turtles 2: Micro-Turtles no Bōken, the Ninja Turtles use the power of the MutaStones to shrink down to microscopic size, so they can save Splinter from the Nanovampire. Due to the strain this puts on them, if they Super Mutate, they will only have three minutes before they are returned to normal size, no matter where they are.

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