CheatCodes.com has the complete list of all Altered Beast Achievements and Gamerscores for X360, including all secret Achievements. All official X360 achievements for Altered Beast as of Sunday August 2, 2015 are shown below, or you can print out our Printable Achievements Checklist that shows all Altered Beast Achievements and Gamerscores in a simple quick-reference format.
Finish the game.
Start the game once with each of the four difficulty settings.
Score 350,000 points.
Reach the third level without losing a life.
Score 250,000 points.
Defeat the third level boss.
Defeat the first level boss.
Kill 30 two-headed wolves.
Play in an online multiplayer game.
Score 150,000 points.
Collect Spirit Balls from the first three White Wolves in any level - Single Player mode only.
Collect a Spirit Ball.