ACHIEVEMENT - HOW TO UNLOCK 1989 - Kill 1989 enemies. 60 To Car - Go to the car 60 times. Aced It - Get an A+ on any chapter. Achievement Whore - Unlock all achievements. Always On Top - Perform every ground kill in the game. Batman - Clear chapter ?? using only a bat and the bat mask. Cat Fight - Kill the panthers using the panther mask. Combo Beginner - Perform a 4x combo. Combo Intermediate - Perform a 6x combo. Combo King - Perform a 12x combo. Combo Master - Perform a 10x combo. Combo Pro - Perform a 8x combo. Dog Lover - Kill 99 dogs. Domino Effect - Throw a weapon at an enemy so that his weapon hits another. Eye For Details - Collect all the puzzle pieces. Get A Life - Get A+ on all the chapters. Guns For Show - Kill at least one enemy with each gun. I Got New Friends - Unlock all weapons. Karma - Die 1000 times. Knife For Pros - Kill at least one enemy with each melee weapon. Let In Some Air - Destroy 500 glass panels. Nigel Lowrie - Use a human shield. Pitcher - Hit at least one enemy with each throwing weapon. Plain Luck - Kill three or more enemies with the same brick in one throw. Playing Pool - Kill an enemy with a brick bounced against a wall. Sewer Alligator - Find the crocodile mask. Smell Something Burning - Kill the crapping gangster with a fireaxe. Sounds of Animals Fighting - Wear all masks at least once. That's It? - Beat the epilogue. The Boss - Solve the puzzle. The End? - Beat the mainstory. These Are My Guns - Complete chapter five barehanded. This Is It - Beat the epilogue with secret ending. Two Birds With One Stone - Kill two enemies with the same brick in one throw. Zoo Keeper - Collect all the masks.