8-4, Ltd. performed Japanese-to-English and English-to-Japanese translation for what role-playing video game created by American indie developer and composer Toby Fox?
8-4:  It performs Japanese-to-English and English-to-Japanese translation and localization on a contract basis with credits including "Monster Hunter", "Nier", "Dragon Quest", "Fire Emblem", "Tales"", Undertale "and more. Undertale: Undertale is a role-playing video game created by American indie developer and composer Toby Fox.
Undertale