The game celebrates the 20th anniversary of ASCII Media Works' Dengeki Bunko imprint, featuring various characters from light novels published under the imprint. Dengeki Bunko Fighting Climax is a two-dimensional fighting game, in which two players fight against each using both a playable fighter character and an assist character. Fighting uses three main attack buttons; weak, medium, and strong, and a support button used for summoning a player's assist character. After an assist character is summoned, players will need to rebuild their support gauge before they can summon them again. By building the Climax Gauge with attacks, players can perform powerful Impact Skill attacks, and can also use Blast Icons to perform Blast Attacks, allowing them to escape from combos.
