Bleach: Heat the Soul is a series of 3-D cel-shaded fighting games for the PSP based on the popular manga and anime series Bleach by Tite Kubo. Each installment is developed by Eighting and published by SCEI. All installments have been released only in Japan.
Each installment has several methods of play, with different types of game modes. New games have introduced additional modes that usually carry over to the sequels. Using characters taken directly from Bleach manga, the player uses each character's unique abilities to battle and defeat an opponent. New games expand on the series' plotline in "Story Mode" or, as it is known in Heat the Soul 3 and 4, "Mission Mode," which generally stays true to the source material. Because of this, the character roster increases with each installment.
In each game of the series, the player controls one of many characters directly based upon their Bleach manga counterparts. The player then pits their character against another, usually controlled by the game but this can also be another player depending on the mode being used. The objective of each match is to reduce the opponent's health to zero using basic attacks and special techniques unique to each character and derived from techniques they use in the source material. For instance, Ichigo Kurosaki's use of his Black Getsuga Tensho (though only while using Ichigo's bankai form) and Rukia Kuchiki's utilization of kidō. For some techniques, characters have available a "spirit gauge," which depletes upon execution. Most techniques are not executed in real time, and instead have an accompanying cinematic that takes place. Furthermore, some characters can transform into certain alternative forms mid-battle, albeit until their spirit gauge is fully drained or the player cancels the transformation. As of Heat the Soul 3, the player may select partner characters to help aid them in battle. Each partner character has different abilities based on their skills from the series. Whereas Heat the Soul 3 allows the selection of up to three partner characters, Heat the Soul 4 only allows two at a time, though the abilities of both can be combined to create more powerful effects.