"Armageddon" is the first in the series to feature every character from the 14-year-old "Mortal Kombat" universe. There are more than 50 3-D fighters in all including Scorpion, Kung Lao, Sub-Zero and Motaro.

Like any good fighting game, however, only a handful of characters are available at the start. Part of the fun is unlocking the rest, each of whom has a unique look, fighting style and weapon preference.

And if you don't want to go with a preexisting character, "Armageddon" is the first "Mortal Kombat" game with a "Kreate-a-Fighter" mode. You can select from thousands of physical features and attributes to design a custom fighter, give him or her a name, and then start a game to test their skills against others.

Ultimate Mortal Kombat 3 Xbox 360 Cheats

Select Cyber Ninja Smoke. Before a round begins, hold the following buttons until Human Smoke appears. For player one, hold Left + HP + HK + Block + Run. For player two, hold Right + HP + HK + Block + Run. Hidden characters Play Arcade mode with any character on any difficulty setting. Intentionally lose your first match and allow the timer to count all the way down. When the timer reaches zero a screen will appear where you can enter codes. Each block corresponds to a specific button. You must enter the following codes within ten seconds to unlock the corresponding character: Classic Sub-Zero: Press Y(8), A, RB(8), B(3), X(5) on controller one, then Y(8), A, RB(8), B(3), X(5) on controller two. Ermac: Press Y, A(2), RB(3), B(4), X(4) on controller one, then Y(4), A(4), RB(3), B(2), X on controller two.