The hack can be patched on any unmodified version of the ROM, as well as on the version of the ROM with a Russian translation (I have not tested with other languages).
1. Special hit is now done very easily by simply pressing A+B (you can even use Turbo A+Turbo B).
2. The turtle's weapon changes by pressing Select (when playing 2 players, the same weapon is impossible).
00EE2F:
4C B9 9F
03DFC9:
B5 54
C9 20
F0 1D
C9 C0
D0 08
A9 08
9D 0B 05
4C E6 D0
BD EF 04
F0 03
4C D9 A4
BD E9 04
4A
90 03
4C C6 D0
B5 68
69 00
29 03
E0 00
F0 05
C5 68
4C ED 9F
C5 69
F0 EF
95 68
4C 30 CE
Database match: Teenage Mutant Ninja Turtles III - The Manhattan Project (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
File SHA-1: 30B6AFB694AB5045B88F723A1ADE44575C33FB69
File CRC32: DBB3BC30
ROM SHA-1: B3228341C41EDD6751AF37FD3DC83B07899A6D55
ROM CRC32: BB6D7949