NBA 2K cheats and cheat codes for Dreamcast

At the "Options" screen select the "Codes" option, then enter
the following case-sensitive cheat codes:

2D players: Enter "SQUISHY"
Big ball: Enter "BEACHBOYS"
Big feet: Enter "BIGFOOT"
Big heads: Enter "FATHEAD"
Coaches in pain: Enter "COACHOUCH"
Extra teams: Enter "DEVDUDES"
Fat players: Enter "DOUGHBOY"
Gigant players: Enter "MONSTER"
Secret message: Enter "HIMOM"
Tiny players: Enter "LITTLEGUY"