The player takes the role of Miami PD Detectives Marcus Burnett and Mike Lowrey over alternating levels, meaning that the player plays level 1 with one character, plays level 2 with the other, then plays level 3 with the first, and so on. The game contains five acts, each containing several levels.The game takes place with Miami police detectives Marcus Burnett and Mike Lowrey were sent by Captain Howard to let them check out a diner robbery.the game also has unlockables such as super shotgun or infinite ammo,which can be unlocked through beating the game MANY times or by entering a cheat.