Nivlek (who belongs to Kelvin) is a guest referee for this game, where Red and Showtime are the ones ready for opening tip-off. Most likely it is an exhibition/pre-season game, otherwise the league would probably require all players (and refs) to wear their complete uniforms.
On a somewhat related note: one of the greatest Laker commentators was Francis "Chick" Hearn, and when the Lakers would win by a good margin he would usually say this:
"This game's in the refridgerator... The door's closed, the lights are out, the eggs are cooling, the butter's getting hard, and the jello's jiggling!!!"
raptorred and I commissioned Kelvin for this one. 
