Because the base Japanese ROM lacks the depth, English accessibility, and extended roster that the Xtreme patch provides.
You can install the mod on a physical Wii console or via the Dolphin Emulator on PC. Inazuma Eleven Go Strikers 2013 Xtreme Download
The vanilla game caps out at roughly 300 players. Xtreme pushes this to nearly . Because the base Japanese ROM lacks the depth,
[Guide] Where to find Inazuma Eleven GO Strikers 2013 Xtreme download + English patch in 2025 Inazuma Eleven Go Strikers 2013 Xtreme Download