Penultimate Nullificator is weapon, created by Sliver, to destroy the Megatropolis. Despite it stays in Sliver's Tower, it is programmed to explode the Megatropolis outside from inside, until Shellectro uses his electricity abilities to reprogram the Nullificator to destroy inside, instead of outside. Michelangelo fades away, Super Turtles fly away, leaving a caged Sliver to stay in his tower, just as Nullificator explodes, destroying the tower and killing Sliver inside.


  • The weapon's name is an obvious reference to the Ultimate Nullifier, a weapon of unimaginable power in the Marvel Comics universe that scares even Galactus.