In two-player mode, run up to the quarterback after the hike and press SQUARE. If done correctly, the QB should hand off the ball to you.
Hidden Teams
If you are the first player, press UP to pick a Super Bowl team. If you want an All-star team, push UP again at the player selection screen and scroll through by pushing L1 and L2.
If you are second player push down to get to the Super Bowl teams and down again to get to the all star teams. Then scroll through the teams by pushing R1 and R2.
Fumble on Purpose
To fumble the ball on purpose, press L2 and R2 at the same time, and the player with the ball will fumble backwards, so make sure you have a teamate behind you!
Block Punt
First, you go to easter eggs (see below) and enter REJECTION and NYSE (New York Sack Exchange.) Then you start a game and when they are about to punt or kick a field goal you can block it by: Before the snap hold R1. As the ball is snapped hold R1 and Down. When you get close to the kicker press triangle.you should block the kick and return it for a touchdown 87% of the time.
Codes
To enter any of the following codes, go to the Easter Egg screen from the main menu and enter the codes. You can enter more than one code by using the "Add Entry" option in the Easter Egg Screen.
JUICE -- Players move quickly when desperate
HUMONGOUS -- Large players
CREDITS -- View credits
LOUD MOUTH -- Commentator is loud
LEECH -- Tighter coverage
HATCHET -- Forearm shiver juiced
DEEP GRAY -- Smarter computer opponent
AHAB -- Players have one foot
INVISIBLE -- Players are invisible
COOKIE CUTTER -- Players are paper thin
NYSE -- Swim move is juiced
REJECTION -- Defensive players jump higher
TOAST -- Secondary plays farther off receivers
GLOVES -- Players catch more passes
FIRE DRILL -- Players move fast at all times
LOOK MA -- No hands
BLIND REF -- No penalties
BUSY REF -- More penalties
QUIET CROWD -- Quiet fans
EQUAL TEAMS -- Teams have equal abilities
SHOW OFF -- When you dive, press JUMP to do a roll and keep running
VIRTUAL POLYGONS -- Flat players
FLEA CIRCUS -- Small players
CPU DEFENSE -- Better computer defense
CPU OFFENSE -- Better computer offense
GD CHALLENGE -- Computer plays harder
WATERY AI -- Stupid computer
BIG FOOT -- Make field goals from long range
THIN AIR -- Same as above
FLAT LAND -- Players are flat
MCMAHON -- Play as shadows
CRUNCH TIME -- Louder hits
HORSEMEN -- No heads
AIR STRIKE -- Quarterbacks throw longer and higher passes
BETTIS -- Runningbacks run faster
JACKHAMMER -- Players hit harder
Louder hits and others
At the beginning go to the options screen. go to where it says easter eggs at the bottom. Type crunch time press x and you should have louder hits in the game they might also be harder.