These mods often require access to the original XBLA package files, which a modded ISO can provide. However, the PC version also supports mods via Nexus Mods, making the ISO route unnecessary for most.

Verdict: unless you are a digital preservationist or emulation enthusiast.

Between the "Insane Mode" difficulty and the sheer number of characters to unlock, like the Necromancer or Cult Minion , there is significant longevity.

Unless you have a JTAG/RGH console and know exactly what you are doing, avoid random “Castle Crashers ISO” links.