AkaRed is the embodiment of all 40+ red sentai rangers/warriors of the long-running Super Sentai and is the icon of that. He is also Tabuu's heroic counterpart despite that AkaRed and Tabuu are from Super Sentai and Super Smash Bros respectively.
AkaRed has the power of three elements: fire (Being the embodiment of all 40+ red sentai warriors), light (Heroic counterpart of Tabuu as he used darkness unlike AkaRed), and time (He uses his red ranger powers chronologically while in battle; if he used all 40, then he either starts all over again or does the number power in reverse (i.e. No. 40, No. 39, No. 38, No. 37......)).