Minecraft: Xbox 360 Edition on a JTAG or RGH-modified console, you need the base game files and specific Title Updates (TU)

Based on the findings of this report, we recommend:

This is where the "download" part gets interesting. Minecraft on Xbox 360 was updated via "Title Updates" (TU). A JTAG user didn't just download the game; they downloaded specific, altered versions of the game's updates.

JTAG, or " jailbreak" for short, was a magical term in the gaming world that meant having unrestricted access to a console's inner workings. For John, it meant being able to play custom-made maps, mods, and even unreleased content on his Xbox 360.