Due to cartridge limitations, only 30 characters are included, instead of the 37 featured in the other console versions. The N64 port lacks Goro and Kintaro; the classic versions of Jax, Kung Lao, Kano, and Raiden; as well as the unmasked Sub-Zero (however, the masked Sub-Zero can perform both Sub-Zeros' special moves). Chameleon is replaced with the secret character Khameleon, a grey female ninja that randomly switches between Kitana, Mileena and Jade. The N64 version of the game, like "MK3" and "UMK3", provides the player with an "Ultimate Kombat Kode" screen after a single-player game is over, where a 6-digit code can be entered to unlock Human Smoke and Khameleon for normal play.