This is a tool-assisted speedrun. The Turtles were no ninjas in europe but they were heroes. Teenage Mutant Ninja (Hero) Turtles are back and have to slay tons of enemies.
From Wikipedia:
Teenage Mutant Ninja Turtles III: The Manhattan Project, released as Teenage Mutant Ninja Turtles 2: The Manhattan Project (ティーンエイジ・ミュータント・ニンジャ・タートルズ2 ザ・マンハッタン・プロジェクト) in Japan, is a side-scrolling beat-'em-up released by Konami for the Nintendo Entertainment System in North America in . Learn about Teenage Mutant Ninja Turtles III: The Manhattan Project
