WWF Wrestlemania 2000 used the AKI engine, previously seen in the studios prior wrestling games under the WCW brand ( WCW/nWo: World Tour and WCW/nWo Revenge) and as a result used many of the same buttons to perform the same moves. The D-pad is used to move, the control stick taunts, and the c-buttons can run and change targets. L dodges and R blocks. Pressing these at the last possible moment before being attacked initiates a counter move. A and B can grapple and strike respectively. Holding the buttons down perform stronger versions. After grappling, the player can use A or B and the d-pad to attempt different moves. These can be reversed with the R button.
In the match itself, there is no health bar, but the wrestlers will begin to slouch, limp or hold a damaged limb. There is a momentum meter, however, which pulses more brightly and harder as moves and taunts are performed and gets slower and duller as damage is inflicted. Once the meter is maximized, a taunt will bring the wrestler into a sort of "rage" mode in which they can't be pinned or made to submit, their moves do significantly more damage and they can perform their devastating finisher.
The game featured a prominent story mode which had no branching storyline, but accurately recorded wins and losses rather than having the match won or lost based on the plot. The story generally followed the major story lines of WWF television leading up to the previous WrestleMania.
There is also an Exhibition Mode, in which any match may be set up with any wrestlers. The matches include standard wrestling fare, though it was notable at the time for including a Cage Match and a First Blood, as neither of the WCW games had either.
It is the also first western THQ wrestling game to feature a create-a-wrestler mode rather than a simple costume change. The mode is extensive, allowing customization of appearance, taunts, entrances and a move-set. Once a wrestler is created, the player can enter them in the Story Mode. The create-a-wrestler mode also allows the default wrestlers' costumes to be edited with four different templates for alternate costumes (or in the case of Mankind, alternate wrestlers) with the same moves. The default wrestlers' moves couldn't be changed.
There is even a create-a-belt feature in which you design the look of a belt and put them up for grabs in Exhibition matches. Up to ten belts can be created and customized.