Super serve:
Hold Up + II, then press I to toss the ball into the air. Hold Down + II, wait until the ball turns red, then press I to serve.

Serve ball to baseline:
Hold Left + II, then press I to toss the ball into the air. Hold Right + II, wait until the ball turns red, then press I to serve. Note: To perform this move as a jump serve, hold Right + II to toss the ball into the air.

Serve ball to10 ft. line:
Hold Left + II, then press I to toss the ball into the air. While continuing to hold the buttons, wait until the ball turns red, then press I to serve. Note: To perform this move as a jump serve, hold Right + II to toss the ball into the air.

Super spike:
Hold Up + I + II just before a player receives the ball. Hold Down + I + II as the setter is about to touch the ball. The player that will spike the ball will glow to confirm correct code entry.

USA league mode passwords:

OLFLK
RCARU
RC602
R.7AY
RW6AU
RP7V4