Rent A Hero is an action role-playing video game series released by Sega for the Mega Drive console in 1991 with a large emphasis on humor. The game features the same graphic engine previously used in the development of Sword of Vermilion. However, Rent A Hero has an unusual innovation for the genre. Instead of using standard turn-based battles, fights are in a similar format to 2D fighting games.

Taro Yamada, or Rent A Hero, lives in the town of Corja in Japan with his mother, eccentric father and younger sister Alyssa; the family moved there after his father changed jobs. He received his Combat Armor by accident during their house-warming party, when he ordered pizza from 'Sensational Cafeteria' or SECA and instead received the suit. After realizing the suit gave him incredible strength and that he is required to pay for the armor, Taro decides to become a hero for hire, performing various heroic tasks and odd-jobs for the townspeople of Corja.

Rent A Hero No. 1, a remake of the original Mega Drive game, was released for the Dreamcast in 2000. It features similar events to Rent A Hero, this time adding Rent A Hiroko, a female counterpart of Taro. The fighting engine used for the game is the same used for Sega's Spikeout games and allows the player to receive hints via in-game email.