Collect a Spirit Ball.
Collect Spirit Balls from the first three White Wolves in any level - Single Player mode only.
Score 150,000 points.
Play in an online multiplayer game.
Kill 30 two-headed wolves.
Defeat the first level boss.
Defeat the third level boss.
Score 250,000 points.
Reach the third level without losing a life.
Score 350,000 points.
Start the game once with each of the four difficulty settings.
Finish the game.
