You started the game once with each difficulty setting.
You finished the game.
You killed 30 wolves.
You scored 350,000 points.
You scored 250,000 points.
You defeated the third level boss.
You scored 150,000 points.
You reached the third level without losing a life.
You played in an online multiplayer game.
You defeated the first level boss.
You got fully altered without missing a White Wolf.
You collected a Spirit Ball.