If you want to experience exclusive characters in a safe, legal way, consider:
Some servers adjust the economy to provide more Cards and Rings , removing the need for the heavy ad-watching required in the standard app. A Growing Global Community
These are not official Sega/Hardlight services; using modded clients can lead to account bans on the main game. Key "Exclusive" Content in SFSB
Sonic Forces: Speed Battle private server. Since these servers often offer content not available in the official game, I've designed three options depending on where you're posting. Option 1: Discord Announcement (Community Focused) 🚀 PRIVATE SERVER EXCLUSIVE: [Server Name] UPDATE 🚀
Because private servers are community-driven, they often feature content that SEGA cannot or will not release officially: Unreleased Characters
In simple terms, a private server is an unofficial game host. Instead of connecting your app to SEGA’s official servers (which control microtransactions, events, and card drops), you patch your game to connect to a third-party server run by fans.