Battle Fantasia is an arcade-style fighting game inspired by Guilty Gear series with some RPG elements. The console versions contain various features such as an arcade mode, a training mode, and a versus mode (either offline or online where players can compete head-to-head and track their rankings online).
The story mode is set up between matches through the look of a fantasy book. It tells the story of a world ravaged by darkness and monsters, nearly destroyed it. For ages, mankind tried to fight back the evil, but was unsuccessful, and just before all seemed to be lost, four heroes stepped forward and drove the darkness back, bringing peace and tranquillity back to the world. As a result of the war, the world was divided into two kingdoms: the Magic Kingdom and the Steam Empire. But after many years, the Deathbringer has returned to the world and threatens to destroy it once again.
The player controls one of twelve characters, each with their own back story linking to the devastating war and the reappearance of the Deathbringer. Each character has unique skills and weapons to use, however unlike traditional fighting games, life bars are still present but determined by hit points, and health is deducted depending on the attack and strength of the attacker.
The game features 2-D cel-shaded graphics on 3-D environments, with hand-drawn illustrations by Emiko Iwasaki telling the story, who also drew the main characters in the game.