When you score a touchdown and the word touchdown first appears, enter the following buttons combinations:

Code - Effect

L2+X - Heisman Trophy pose
R2+Square - Dunk on goal post
R2+Triangle - Punch ball towards crowd
R2+Circle - Kick ball into crowd
L2+Square - Spike ball,points to crowd and hits chest
L2+Triangle - Bows to crowd
L2+Circle - Spikes ball and shrugs shoulders
R2+X - Throws ball into crowd