Project FB (プロジェクト火の玉 Purojekuto hinotama?, Project Fireball) is a crossover tactical role-playing game for the Nintendo 3DS developed by Fireball Studios and published by Fireball Studios. The Game consists of adding in characters from Video Games, Film, Books, Comics and etc. in 2016 into the roster of an event.
Stages in Project FB take place in grid-based locations from the game's many crossover titles. The battle system is called the Cross Active Battle System, wherein pressing the A button in combination with the Circle Pad performs up to five basic attack combos. Additional gameplay elements include Support Attack, which allows the player to call in a nearby ally for assistance, and Cross Hit, which freezes the target in place during simultaneous attacks from multiple units. Also, the player can trigger Critical Hits by connecting their next attack just before the target hits the ground after the first. As the player's units deal damage, the player's Cross Power (XP) gauge fills up and can be used for special attacks and defensive moves on the map. Damage done via Cross Hits can fill this gauge up to 150%.