Exiled to a toxic waste dump world reserved for Dimension X's most dangerous criminals, Slash, an eco-terrorist from the planet Palmadise, met and befriended Krang and Bellybomb, they escaped aboard a waste ship and headed for Earth where they fought, and were defeated by the Ninja Turtles. Slash later resurfaced in a state of berserker rage in South America, it took a bomb being dropped on him just to render him unconcious. The Mutanimals finding a newspaper telling this story think Slash to be one of the Ninja Turtles and break him out of his cage, When Slash regained conciousness he attacks the Mutanimals, but is subdued by Leatherhead. The Mutanimals discover that Slash's world was strip-mined and that all he really wanted was to live in a place that reminded him of home where he could live in peace. The Mutanimals bring him to an environmentally protected island, and Slash was finally at peace. That was until the Mutanimals were killed in cold blood by Mr. Null's Gang of Four. Slash, the Ninja Turtles, Ninjara, and Master Splinter joined forces to avenge the Mutanimals and stop Null, Maligna, and their henchmen from destroying Earth. In the end Slash died when he refused to leave Maligna's hive which was crashing into the sun in order to make sure Maligna and Null didn't escape. The Teenage Mutant Ninja Turtles, Kid Terra, April O'Neil, Oyuki, the future TMNT, Ninjara, Splinter and a couple others held a memorial for him and honored Slash as the fifth Ninja Turtle in a sunset memorial ceremony.

The funeral of Slash