If you haven’t played since 2022, the game has changed dramatically. Sega and developer Headcannon have released several key updates.

The Plus pack also bundles previous add-ons like the Classic Music Pack and Premium Fun Pack (Extreme Missions, Mirror Mode, and new animations). How to Update Your Game

However, the are always free. If you own the base game digitally or via cartridge, simply connect to Wi-Fi and press + on the home menu → “Software Update” → “Via the Internet.” That will give you performance fixes and minor additions (but not Amy or Game Gear games).

expansion and its associated software updates. While some content was initially offered for free as pre-order bonuses, the major expansion and "Plus" features are generally paid content.

: The "Plus" version bundles all previously released content, such as Extreme Missions , Mirror Mode , and the Classic Music Pack . Technical Note on NSP Files