Full list of all 15 R.I.P.D.: The Game achievements worth 400 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Fully Upgrade All Weapons
Execute 10 Deado Criminals
Use Salary to Purchase All Weapons
Send Hayes to Judgement
Complete All Maps on the "HOT" Difficulty
Unlock the Final Showdown with Hayes
Arrest 10 Deado Criminals
Soul Kill 100 Deados
Fully Upgrade One Weapon
Win Each Different Bet
Win Your First Bet
Beatdown 50 Deados Using Melee
Complete Every Challenge In One Level
Kill 65 Deados
Complete Your First Challenge