This is primarily a graphics hack of the classic TMNT game for the NES.

Most of the attract screens and cutscenes have been redrawn using imagery from the 1989 arcade game.

The ending has been completely redrawn using images of characters found in the first few episodes of the cartoon.

Custom sprites were created for April, Splinter, Bebop, Rocksteady, Foot Soldiers (over world and in levels), Mousers, and the Party Wagon.

The patch also corrects errors left in the original game, to include:

- Fixing Rocksteady's run cycle.
- Fixing Raphael's over world sai.
- Correcting misplaced background tiles in some levels.
- Editing Splinter and the Captured Turtle sprites so they no longer flicker

It also

Adds back in the stage select from the prototype. (press and hold A when pressing Start).

Edits some levels to make some of the more notorious jumps a bit less annoying.

and, thanks to Displaced Gamers, makes the swimming level a bit less annoying by editing the turtle's hit boxes and allowing them to swim downward, making the level much easier to navigate.

https://www.romhacking.net/forum/index.php?topic=36992.0

Database match: Teenage Mutant Ninja Turtles (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 89ADF2D9E453FC7FC491F968495C80C0C4A568D5
File CRC32: 83213CA0
ROM SHA-1: B239C2D48E84CA676DEE4461D4D6A1F77F34255D
ROM CRC32: EE921D8E