"Mario-Strikers-Battle-League-Update_1.2.0.rar" is likely a third-party archive containing files related to the of the Nintendo Switch game Mario Strikers: Battle League , which was officially released on September 21, 2022 .
: Added Pauline and Diddy Kong to the roster. Stadium : Introduced the Planetoid stadium.
: Added the Barrel gear set, which focuses on specific stat adjustments. New Features
How to Update Mario Strikers: Battle League | Nintendo Support
If you are looking for information or "papers" (official patch notes/documentation) regarding what this specific update contains, 2.0:
