Defeat the Creeper in the Colosseum.

Complete Ocean Chase.

Defeat Gator Ghoul in Prehistoric Jungle.

Complete Snow Chase.

Defeat Old Iron Face in Boardwalk.

Defeat the Phantom Virus in the Arcade. (Password protected)

Solve the mystery. (Password protected)

Collect 500 scooby snacks on arcade.

Collect all 3 pieces of evidence. (Password protected)

Defeat the Creeper without getting hit.

Complete Ocean Chase without getting hit.

Complete Snow Chase without getting hit.

Defeat Old Iron Face without getting hit.

Complete Colosseum within 1 minute.

Defeat the Creeper within 1 minute 30 seconds.

Complete Ocean Chase and survive two loops.

Complete Prehistoric Jungle within 6 minutes.

Defeat Gator Ghoul within 1 minute 30 seconds.

Complete Snow Chase and survive two loops.

Complete Boardwalk within 4 minutes.

Defeat Old Iron Face within 1 minute 30 seconds.

Defeat the Phantom Virus within 3 minutes. (Password protected)

Complete the game without anyone being captured. (Password protected)

Complete every level as Scooby on high.

Figure out who the culprit is without any clues. (Password protected)

Beat the Creeper as Daphne.

Beat the Gator Ghoul as Fred.

Beat Old Iron Face as Velma.

Beat Ocean Chase and Snow Chase as Shaggy.

Beat the Phantom Virus as Scooby. (Password protected)

Defeat the Creeper on high.

Complete Ocean Chase on high.

Defeat Gator Ghoul on high.

Complete Snow Chase on high.

Defeat Old Iron Face on high.

Defeat the Phantom Virus on high. (Password protected)

Solve the mystery on high. (Password protected)

Beat the game without anyone getting caught on high. (Password protected)