Phantom Breaker: Battle Grounds

Phantom Breaker: Battle Grounds (ファントムブレイカー：バトルグラウンド) is a beat 'em up developed and published by Mages under the 5pb. brand, and originally released on February 27, 2013 for the Xbox 360. it is a spin-off of the fighting game Phantom Breaker.

On March 12, 2013, a downloadable content add-on, the "Kurisu Pack," was released which adds Makise Kurisu from the Steins;Gate franchise as a playable character and raises the maximum character level. On November 18, 2016 two additional DLC packs were released, the "Frau Pack" adds Frau Kōjiro from the Robotics;Notes franchise as a playable character, while the "BGM Pack" adds programmable sound generator and frequency modulation versions of the background music. The game was featured in the official music video of "Move" by I Fight Dragons.

In September 2023, Rocket Panda Games announced a complete remaster of the game using Unreal Engine 5, titled Phantom Breaker: Battle Grounds Ultimate. It is scheduled for a 2025 release on Nintendo Switch, PlayStation 4, PlayStation 5, Windows, Xbox One, and Xbox Series X/S.

Plot
In Phantom Breaker: Battle Grounds players play as chibi versions of Mikoto, Waka, Itsuki and Yuzuha as they fight against large groups of enemies. Their friend, Nagi, has been captured by Phantom and the girls must go through hordes of Phantom's minions to try and rescue her, with each one having unique encounters and dialogue with the enemies.

Ports
A PlayStation Vita version was released on March 13, 2014 in Japan. The game was released in Europe on July 30, 2014 and North America on August 12, 2014. It is the first Vita game released worldwide by 5pb., and, according to producer Masaki Sakari, involved a number of hurdles relating to regional certification. A Windows port was later announced, which would be published by Degica and was released on January 23, 2015. An enhanced port for the PlayStation 4, entitled Phantom Breaker: Battle Grounds Overdrive had also been announced and was released on July 21, 2015. A Nintendo Switch port of Overdrive was released on December 7, 2017, adding in additional content not found in previous versions, but lacking the online functionality of the original.