ULTRA POWER is an original hip-hop track by the Japanese vocal unit SARUKANI, added to maimai でらっくす BUDDiES on January 26th, 2024. The group, consisting of SO-SO, RUSY, KAJI, and Kohey, handles every aspect of production in-house, from composition and arrangement to lyrics and vocals, and even produced the official music video themselves under the "Movie: SARUKANI" credit. The song was originally released as a self-titled single or album in 2020, predating its maimai appearance by several years. Built around a driving 142 BPM beat, the track is driven by call-and-response chants with the repeated refrain "SUPER HYPER ULTRA POWER!" punctuated by interjections of "Dope! Sick! Awesome! Crazy!", a phrase that also appears in-game as an achievement title for playing with four players. The song later received a remix album featuring contributions from prominent producers including Blacklolita, Mameyudoufu, and Juggernaut. In maimai, the Master chart (level 13, constant 13.5) was designed by サファ太 and the Expert chart (level 11, constant 11.2) by 鳩ホルダー, offering a dense but accessible dance-groove experience across the difficulty spectrum.