Blood Rage

Blood Rage is a gameplay introduced in God Eater 2 Rage Burst for the Protagonist (God Eater 2) only, the system is a "final power-up mode" superior to even the Level 3 Link-Burst. As a result, this powerup can only be used once or twice in certain missions, after a certain percentage of an "Enemy Meter" from fighting against an Aragami is filled to 100%. The player can then access a touch-screen menu of blade-shaped tabs that list a certain weapon damage percentage increase. They can select one or more of several specific conditions that must be chosen and fufilled in order to gain a specific weapon damage increase and the activation of the Blood Rage power-up. Should one of the tab options be chosen, that condition, and any other condition selected, must be fulfilled within 30 seconds in order to gain that chosen tab's damage increase percentage and for the successful activation of Blood Rage. Failure to complete the selected conditions will eat 100% of the meter. The Blood Rage build-up meter can store up to 400% (in four stacks of 100%) and can be used for future missions. The meter can be filled by attacking Aragami (does not work with dead Aragami but the meter will fill up slowly by it's own).

When Blood Rage activates, it will last 30 seconds (the power-up's remaining time is shown at the bottom left corner of the screen). Aesthetic changes in Blood Rage include a yellow semi-circle wing with spiky structure on the player character's back, leaving a black and yellow stream of (presumably) Oracle Cells. When idle, the stream circles around the player's back and when moving around, it trails them. Also, a new song titled "Blood Rage" starts immediately when Blood Rage is activated. These effects, including the damage increase, disappear by the end of Blood Rage's duration.

Blood Rage lasts for a short time and while it does, certain effects are applied to the player character. The main aspect of Blood Rage is the significant increase in damage that can be gained, with a potential 400% increase being possible. Additionally, while in Blood Rage, the player character is impervious to enemy attacks, can shoot regular Oracle bullets infinitely (recovery bullets do consume OP normally), can ground-step/roll infinitely without delay, and devouring speed is increased as well (not to be mistaken for the charge-up time, which is already affected by a separate skill, but whenever a Devour Attack connects).

With the Short Blade equipped in Blood Rage, one can also air-dash 3 times in a row. Blood Rage can be activated in both Gun form and Blade form, and sometimes the Blood Rage activation conditions can contain a restriction on usage of a certain form's regular attacks (ex: all Blade form attacks except shield-cancel Devour attack are unusable until Blood Rage is activated).

Miscellaneous

 * Burst can be active at the same time as Blood Rage.
 * Blood Rage does not stop your Burst meter from depleting.
 * Your teammates can help you fulfill the conditions—damage, combo hits, and devours performed by your teammates will count towards fulfillment of Blood Rage vows.
 * It's much easier to fulfill the conditions when other players have achieved Blood Rage.
 * The stamina cost of all actions that consume stamina will be reduced to zero for the duration of Blood Rage.
 * While in Blood Rage, OP cost of bullets will be reduced at a rate directly proportionate to how much of a damage multiplier you accrue.
 * If the Blood Rage ends during Boost Rush, you can continue Boost Rush without needing to activate Boost again.
 * While in Blood Rage, if you use a Blood Art that consumes your entire (remaining) stamina, such as CC • Boosted/The End, you will not enter Out of Breath state.
 * Magatsu Kyuubi's leeching orbs will still lower your max HP.
 * Aragami corpses count for the purposes of vow fulfillment. As an example, say you selected a Yaksha Tivra as the target for your vows, and you killed one out of a hypothetical two on the field.  You can still use the corpse for vow fulfillment—damage infliction, combo hits, and devour count can be accrued through attacking the corpse.

Tips
Tips on how benefit Blood Rage even more.

Short Blade

 * Equip Blood Splattering Dance (Square Blood Art).

Long Blade

 * Equip Gale Katana: Iron (Zero Stance Blood Art).

Variant Scythe

 * Equip either Dead Weeder or God Slicer (Round Fang 1 Blood Arts).

Boost Hammer

 * Equip Tenderizer (Boost Rush Blood Art).

Charge Spear

 * Equip Hurricane Type A (Square Blood Art).