Madden NFL 2005 Cheat Codes for Nintendo DS

Endzone ball!
Hold L after you score a touch down to spike the ball!

Cheat Codes
Touch the small spot on the main menu to display the cheat entry box. Then enter one of the following codes to activate the corresponding cheat function.

Code - Effect:
SMASHMOUTH - Harder Hits
SUPERSLICK - More Fumbles
BADPASS - More Interceptions
SAD SACK - More Sacks
SHORTTIME - Opponent gets Three Downs
LONGTIME - You get Five Downs

Passing
If you are playing in season mode, to get more passing yardage, use Directional mode. It will show when a receiver is open, and you can still throw the ball when a receiver is not fully open.