Mystery Mayhem is barely there at all. Decent writing and cartoon trappings are blanketed by busywork and hostile collectables.

The games contains five large episodes with soft adventure elements. Each contain the ruins of attempted open design, cut back such that areas with multiple options or exits collapse into hours of linear key-to-door-to-key patterns. Navigation is mechanically overhead and you are unable to drop down obvious ledges or utilize movement options outside of an unnecessary sneak button.

The racing minigames do contain more action, stretched into the majority of two episodes with numerous insta-death memorization checks. It all screams of a game cut down in the last mile into an entirely different experience than the engine and environments are capable of. The Gamecube-style suction combat is easily solved with enemy mechanics you are not pushed to engage with and no-effort bosses.

At base, the game is still inoffensive with its infinite lives and frequent checkpoints. Taking it seriously is the fatal flaw. This game contains the worst collectable implementation it was capable of delivering. You cannot retry levels, which all contain hidden points-of-no-return, hiding permanently missable collectables. They obey contrived, unwritten rules, such as requiring you kill all enemies in one area before an item silently spawns in another. Even for a confident player you are required to spoon a 2003 FAQ/Walkthrough like a codependent lover.

The best version of this game, I imagine, is dated 4 months before release and is saved on a retired developer's hard drive. That thought will fill every empty minute of this game, which cannot compete with even a broken, entirely hypothetical, but possibly earnest experience.