Unlike past incarnations, Mikey does not say his famous "Cowabunga" catchphrase, but instead says "BOOYAKASHA!" He usually does this when doing accomplishing something or attacking an enemy. In the episode "Meet Mondo Gecko" the character Jason (AKA Mondo Gecko) uses 'cowabunga' as his own catchphrase, and Michelangelo says it's "too old school" but later asks if he can use it from time to time. In the episode "Journey to the Center of Mikey's Mind", he says "Booyakabunga" (a mixture of both Booyakasha and Cowabunga).