Crash Adventure of Bash is a party game for up to four human or computer-controlled players. The game features several rounds of minigames in which the goal is to defeat opponents by reducing their health to zero or otherwise knocking them out. The last player standing wins the round, and the first player to win a set number of rounds wins the game. The main mode of play in Crash Adventure of Bash is the Adventure Mode, in which one or two players must win all 28 levels to complete. The player must win every collectible in each arena before advancing to the next. An arena boss minigame is unlocked when the player accretes a set amount of collectibles. Minigames include races and other player elimination games
The premise of the game's plot is an argument between Aku Aku and Uka Uka over whether good is stronger than evil. They decide to hold a team-based contest.
* Crash Adventure of Bash - Story
- If a member of Aku Aku's team wins, Aku Aku reveals that he knew his evil brother had a plan to steal the crystals and hides them away for safety. Uka Uka loses his temper and attacks Cortex and Brio for failing him. Suddenly, a hole in the temple opens up and a swirling vortex sucks Uka Uka out, with Aku Aku stating it as the penalty for disturbing the crystals.
- If a member of Uka Uka's team wins, a sinister storm passes through the galaxy. Uka Uka reveals he planned to steal the crystals all along and harnesses their energy. Aku Aku pleads to Crash and Coco to run and save themselves, but Uka Uka proclaims that there is nowhere to hide from his wrath.
* Crash Adventure of Bash - Boss - Boss 1 Papu Papu (in the style of Crate Crush) - Boss 2 Bearminator (in the style of Polar Push) - Boss 3 Komodo Brothers (in the style of Tank Wars) - Boss 4 Nitros Oxide (in the style of Crash Dash / Ballistix)