Donatello found a strange crystal. When Raphael and Michelangelo discover the entrance to a large tunnel in their house, Donatello's crystal starts glowing, the turtles enter the tunnel but are soon confronted by genetically mutated humans.
Did You Know?
If you defeat the game with all 4 turtles, you can battle Oroku Saki after battling with Shredder. See more