Sonic Unleashed (PS2) does not support cheat codes. The PS2 version lacks a cheat menu, and Action Replay/GameShark codes for this title were never reliably produced.
Legitimate Progress Tips
Master the boost drift (hold drift + boost) for tight corners.
Memorize day/night stage layouts—replay for better ranks.
Collect Sun/Moon Medals to unlock extra acts and concept art.
Watch speedrun videos (YouTube) for optimal routes.
