FIFA 08 Cheats - Xbox 360

Cheat Mode
Hold [RB] and press [RT], [LT], [A], [LB], [X], [Y], [Y] while chosing the teams to play with and play against to unlock everything.

Achievements
Complete each achievement to get the allotted gamerscore:

10 scored (50) - As the Lead Profile in a single player game get 10 or more goals in one match on Professional.
10 up (10) - As the Lead Profile in a single player game win 10 Xbox LIVE ranked matches.
5 game streak (10) - As the Lead Profile in a single player game have a 5 game winning streak on Professional.
50 game streak (40) - As the Lead Profile in a single player game win 50 games on Professional.
Blank sheet (30) - As the Lead Profile in a single player game keep a clean sheet on World Class difficulty.
Boot Cleaner (15) - As the Lead Profile Complete Challenge Mode Region 1.
Captain (30) - As the Lead Profile Complete Challenge Mode Region 8.
Defensive Hero (10) - As the Lead Profile in a single player game win Man of the Match as a Defender on World Class.
Dutch League (10) - As the Lead Profile in a single player game win the Dutch Eredivisie in Manager Mode.
English League (10) - As the Lead Profile in a single player game win the Barclays Premier League in Manager Mode.
First Team Debut (20) - As the Lead Profile Complete Challenge Mode Region 5.
First Team Regular (25) - As the Lead Profile Complete Challenge Mode Region 6.
Football Legend (55) - As the Lead Profile Complete Challenge Mode Region 10.
French League (10) - As the Lead Profile in a single player game win League 1 Orange in Manager Mode.
Genesis (10) - As the Lead Profile, Create a Player.
German League (10) - As the Lead Profile in a single player game win the Bundesliga in Manager Mode.
Getting Serious (20) - As the Lead Profile in a single player game win 50 Xbox LIVE ranked matches.
Grass Roots (5) - As the Lead Profile in a single player game win an Amateur game vs. the CPU.
Host (10) - As the Lead Profile in a single player game host 10 Xbox LIVE Matches.
Italian League (10) - As the Lead Profile in a single player game win Serie A in Manager Mode.
Man of the Match (25) - As the Lead Profile Complete Challenge Mode Region 7.
Midfield Maestro (10) - As the Lead Profile in a single player game win Man of the Match as a Midfielder on World Class.
Online First (10) - As the Lead Profile in a single player game win an Xbox LIVE ranked Match.
Part Time Player (10) - As the Lead Profile in a single player game win a Semi-Professional game vs. the CPU.
Poacher (10) - As the Lead Profile in a single player game win Man of the Match as a Forward on World Class.
Professional Footballer (20) - As the Lead Profile in a single player game win a Professional game vs. the CPU.
Real World (10) - As the Lead Profile, Play an Online Interactive Leagues game to completion.
Reserve (15) - As the Lead Profile Complete Challenge Mode Region 3.
Single Player Hero (10) - As the Lead Profile in a single player game achieve a 90 player rating in Be a Pro.
Spanish League (10) - As the Lead Profile in a single player game win the Spanish Primera in Manager Mode.
Substitute (20) - As the Lead Profile Complete Challenge Mode Region 4.
The Legend (45) - As the Lead Profile in a single player game win a Legendary game vs. the CPU.
This is too much (40) - As the Lead Profile in a single player game host 50 Xbox LIVE Matches.
Tournament Creation (20) - As the Lead Profile in a single player game create a tournament.
US League (10) - As the Lead Profile in a single player game win the MLS in Manager Mode.
Veteran (30) - As the Lead Profile Complete Challenge Mode Region 9.
World Class Finisher (30) - As the Lead Profile in a single player game score more than 5 goals on World Class.
World Class Player (30) - As the Lead Profile in a single player game win a World Class game vs. the CPU.
Worldwide Legend (60) - As the Lead Profile in a single player game win 100 Xbox LIVE ranked matches.
Youth Teamer (15) - As the Lead Profile Complete Challenge Mode Region 2.

More Achievements
These are the 9 secret achievements:

Beat yourself (0) - As the Lead Profile in a single player game score two own goals in a single game.
Competition Winner (20) - As the Lead Profile Win a Created tournament.
Extra bonus (20) - As the Lead Profile in a single player game win by 2 goals in Extra Time on World Class.
Lightning Finisher (10) - As the Lead Profile in a single player game score a goal in under 5 minutes.
Manager Merry-go-round (10) - As the Lead Profile, Play 15 years for 15 different clubs in 15 different countries.
Scruffysocks scores (20) - As the Lead Profile in a single player game score a Hat Trick with a created Player.
They drew a blank (20) - As the Lead Profile in a single player game keep a clean sheet in an Xbox LIVE ranked match.
Tour Bus (20) - As the Lead Profile Play in every Stadium in the game.
World Wide Hat Trick (20) - As the Lead Profile in a single player game score a Hat Trick in a ranked Xbox LIVE match.