It's the Ninja Turtles – Mario Style.
[controls]
Created By: NinjaManon
Game Info: Ninja Turtle Bros. plays exactly like the original Super Mario Bros., but with one big twist. Absolutely every graphic has been redone with a Teenage Mutant Ninja Turtles theme. The purpose of the game is to fight Shredder in an attempt to save Splinter.
To begin playing, you must click the game screen with your mouse. Then the keyboard controls will work.