Why cant you enter a cheat in red dead redemption undead nightmare?

In Red Dead Redemption: Undead Nightmare, cheats are disabled to preserve the game's intended experience, particularly the narrative and gameplay balance. Activating cheats could disrupt the story progression and overall challenge, which are central to the game's design. Additionally, the game encourages players to engage with its mechanics and challenges without shortcuts, enhancing the immersion in its unique zombie-themed setting.