The following characters were hidden unlockable characters: Formerly only accessible via a secret code in MK3, Smoke became a normal playable character in UMK3.
UMK3 has all of the Mortal Kombat 3 fighters plus some of the characters that were left out from Mortal Kombat and Mortal Kombat II: 5.4 Nintendo DS changes (As Ultimate Mortal Kombat).
