24: The Game Cheats & Tips

Character Model: Adam Kaufman Mission 32: 9pm "Locating the Bombs"
Character Model: Agent Baker Mission 37: 10pm "After the Earthquake"
Character Model: Agent Evans Mission 35: 9pm "Jack Leads a Team to the Bomb"
Character Model: Agent Landis Mission 36: 9pm "Attack at the Bomb Site"
Character Model: Agent Pierce Mission 34: 9pm "Bomb Defusal"
Character Model: Carr Mission 3: 7am "Chase Found Out"
Character Model: Chase Edmunds Mission 53: 4am "Fort Lesker's Control Room"
Character Model: Chloe O'brien Mission 7: 9am "Sniper Search"
Character Model: Del Toro Mission 26: 6pm "Going After Del Toro"
Character Model: Del Toro's Guard Mission 27: 7pm "Jack Tracks Kim"
Character Model: Donna Madsen Mission 25: 6pm "Questioning Donna"
Character Model: Dr. Kevin Tyson Mission 11: 10am "To Li Jin Yu's Apartment"
Character Model: Eddie Cain Mission 14: 12pm "Stopping the Metro Attack"
Character Model: Female Civillian Mission 13: 12pm "Bringing in Li Jin"
Character Model: Female CTU Worker Mission 31: 8pm "Disabling the Data Scrambler"
Character Model: Governor James Radford Mission 50: 2am "Searching Radford's Office"
Character Model: Ho Shin Mission 10: 10am "Ho Shin's Shop"
Character Model: Jack Bauer Mission 29: 8pm "Escape from Madsen's Base"
Character Model: Jody Mission 41: 11pm "Hostage Situation"
Character Model: Joseph Sin Chung Mission 48: 2am "Chase Ambushed"
Character Model: Kate Warner Mission 38: 10pm "Madsen has Kate"
Character Model: Kathy Weis Mission 49: 2am "The Informant"
Character Model: Kim Bauer Mission 16: 1pm "Kim Goes Back In"
Character Model: LAPD Mission 40: 11pm "The Search for Radford"
Character Model: Male CTU Worker Mission 20: 3pm "To the Agency"
Character Model: Mandy Mission 51: 3am "DOD System Hack"
Character Model: Manuel Mission 44: 12am "Escaping Sin Chung's Base"
Character Model: Max Mission 59: 5am "The Final Showdown"
Character Model: Max's Bodyguard Mission 58: 5am "Taking the Ship"
Character Model: Michelle Dessler Mission 15: 1pm "M3"
Character Model: Military Base Worker Mission 54: 4am "Cracking the Codes"
Character Model: Nina Meyers Mission 17: 2pm "To the Roof"
Character Model: Passenger Mission 45: 1am "Looking for Kate"
Character Model: Peter Madsen Mission 57: 5am "Jack vs Madsen"
Character Model: President David Palmer Mission 47: 1am "Protect Chase"
Character Model: Robert Daniels Mission 6: 9am "Interrogating Daniels"
Character Model: Ryan Chapelle Mission 28: 7pm "Jack Heads into Madsen's Base"
Character Model: Sean Walker Mission 9: 10am "PDA Discovered"
Character Model: Secret Service Mission 22: 4pm "Jack is Chased"
Character Model: Sid Wilson Mission 18: 2pm "Chase Undercover"
Character Model: Sonny Mission 52: 3am "Armored Truck Pursuit"
Character Model: Stripe Mission 43: 12am "Finding the CTU Data Drive"
Character Model: SWAT team member Mission 1: 6am "Storming the Ship"
Character Model: Tarket Mission 4: 8am "Following Daniels"
Character Model: Tony Almeida Mission 33: 9pm "Tony Leads a Team to the Bomb"
Character Model: Vice President Presscott Mission 8: 9am "Taking out the Enemy"

Unlock Tv Ad 1 Complete the mission "Tony's unexpected find"with over 90% final rating

Unlock Tv Ad 2 Complete the mission "Going after Madsen"with over 90% final rating

At the main menu, hold down all four shoulder buttons (L1+L2+R1+R2) at once, for about 3 to 4 seconds, until the "Security Clearance" cheat menu pops up.
To enter the letters for the codes, hold down the X button over the character you wish to change, then move the + button left or right to change the characters, then let go of the X button to move to the next character using + button. Once all the characters are entered in correctly, press the Square button, and the cheat code should turn orange.

Invulnerable - BAUER066

Infinite ammo - ALMEIDA062

All Missions - DESSLER072

All Bonuses - PALMER054

at the title screen press L1+L2+R1+R2 for 3/4 seconds till a screen comes up type bauer066 to become invincible

Achieve 90% of better objective completion in one of the game's 58 missions to unlock a new bonus item. Each mission unlocks a new item, ranging from 3D character models to interviews and TV commercials for the game.