This hack changes the 9 Lives Code to a 30 Lives Code for both the original and the Konami GB Collection versions of this game.
The 0xED hex editor was used to make these hacks.
Operation C (USA).gb
MD5 Checksum: 702E7DF88BBD42030BC0C74817105B80
Konami GB Collection Vol.1 (Europe).gbc
MD5 Checksum: 6628111E51977279D849F424BDA3A262