ESPN NBA 2K5 Cheats

Unlock Balls
ABA Ball - Do not allow any player on your team be the victim of a steal for an entire game.
ESPN Ball - After unlocking the ABA Ball, do not allow any player on your team be the victim of a steal for an entire game.
Sega Ball - After unlocking the ESPN Ball, Do not allow any player on your team be the victim of a steal for an entire game.

Bobble-Heads
Kevin Garnett Bobble-Head - Do not get blocked for an entire game.
Allen Iverson Bobble-Head - After unlocking the Kevin Garnett Bobble-Head, do not get blocked for an entire game.
Andrei Kirilenko Bobble-Head - Get one double double by any player on your team.
Baron Davis Bobble-Head - Make twenty 3-point field goals in one game.
Yao Ming Bobble-Head - Block a total of ten shots total in one game.
Ben Wallace Bobble-Head - After unlocking the Yao Ming Bobble-Head, block a total of ten shots total in one game.
Dirk Nowitzki Bobble-Head - Defeat the CPU by 15 Points in each quarter of a game.
Carmelo Anthony Bobble-Head - After unlocking the Dirk Nowitzki Bobble-Head, defeat the CPU by 15 Points in each quarter of a game.
Kenyon Martin Bobble-Head - Get 40 total rebounds in one game.
Chris Webber Bobble-Head - After unlocking the Kenyon Martin Bobble-Head, get 40 total rebounds in one game.
Elton Brand Bobble-Head - Get 25 rebounds in each half in one game.
Tim Duncan Bobble-Head - After unlocking the Elton Brand Bobble-Head, get 25 rebounds in each half in one game.
Stephon Marbury Bobble-Head - Do not get pass intercepted for an entire game.
Jason Kidd Bobble-Head - After unlocking the Stephon Marbury Bobble-Head, do not get pass intercepted for an entire game.
LeBron James Bobble-Head - After unlocking the Jason Kidd Bobble-Head, , do not get pass intercepted for an entire game.
Jermaine O'Neal Bobble-Head - Get one double double by a player on your team with one of the stats above 15.
Shaq Bobble-Head - Get one double double by any player on your team with both stats above 15.
Vince Carter Bobble-Head - Make ten dunks in one game.
T-Mac Bobble-Head - After unlocking the Vince Carter Bobble-Head, make ten dunks in one game.
Kobe Bryant Bobble-Head - After unlocking the Kobe Bryant Bobble-Head, make ten dunks in one game.
Steve Francis Bobble-Head - Get 15 total assists in one game.
Lamar Odom Bobble-Head - Get 30 total assists in one game.
Paul Pierce Bobble-Head - Score 500 total points. Note: Points in Street Games do not count towards the total.
Peja Stojakovic Bobble-Head - Make 100% of your freethrows for an entire game.

Halloween 24/7 prizes
Set the system date to October 31 to get prizes such as a pumpkin head and pumpkin ball in 24/7 mode.

Mascot Head in 24/7 training mode
Once you reach 100 in any area of training, you will be given a mascot's head for use in the 24/7 mode:

3PT - Benny the Bull (Chicago Bulls mascot)
BallHandling - The Raptor (Toronto Raptors mascot)
Passing - Sly the Fox (New Jersey Nets mascot)
Dunk - Blaze (Portland Trailblazers mascot)

Easy Baskets in 24/7 mode
When you facing someone in 24/7 mode and are down 7-0 (or something similar), get the ball and go up to the top of the key. You can either pump once, then shoot; or drive past him going left. If you have the ball after you receive the check, pump once, drive to either side, and make a layup.

Easy skills and points in 24/7 mode
This trick requires two controllers. Go to training for something like 3 pointers. When you start using both controllers, you will have control of your opponent. This gives you the chance to do as much training as desired. For the ratings, it works the same way -- you will have control of your opponent.

Easy wins
Pause game play, then go to the options and select "Gamesliders". While there, you can max out your stats. Then, press Start to lower your opponents stats before resuming the game.