There is for this game, but some community findings (from old forums like GameFAQs / PS2 modding) suggest:
manually unlock specific characters like Super Sonic without using a downloaded save? AI can make mistakes, so double-check responses Copy Creating a public link... You can now share this thread with others Good response Bad response 13 sites Sonic Riders: Zero Gravity Save Game Files for PlayStation 2 Datel Wii Power Save (North America) From Jay_FNG (08/13/2008; 82KB) 01 All Characters, Stages, Movies, Modes, etc. (1st Story rac... GameFAQs Sonic Riders: Zero Gravity Save Game Files for PlayStation 2 PlayStation2 Max Drive Save (North America) From mat8913 (05/03/2009; 4KB) all gear all charactors (includes super sonic) and lots... GameFAQs Sonic Riders: Zero Gravity Save Game Files for PlayStation 2 PlayStation2 Max Drive Save (North America) From mat8913 (05/03/2009; 4KB) all gear all charactors (includes super sonic) and lots... GameFAQs It Wont work on my PS2!!!!!! Will someone plz help?!? - Sonic Riders Feb 22, 2009 — sonic riders zero gravity ps2 save file
If you're looking for a save file to continue your game or to start a new game with a head start, here are a few notes: There is for this game, but some community
In the era of the original PlayStation 2, save files were standard unencrypted formats. However, the introduction of the PlayStation 3 and its backward compatibility introduced a new file format: the file. These are encrypted save files specifically formatted for the PS3’s virtual memory card system. Many Sonic Riders: Zero Gravity save files found online today are in this .PSV format. While excellent for PS3 users, they are useless to someone running the game on a PC via an emulator like PCSX2 or using a soft-modded PS2 with a FreeMCBoot memory card. (1st Story rac