Tekken 6: Bloodline Rebellion is the highly popular update of Tekken 6 in the dedicated Tekken 6 arcade machine - a modern style, upright/sit-down cabinet from Namco which features a High resolution 32" LCD monitor, and a two player control panel with two joysticks, 8 push buttons and 2 start buttons.
The Bloodline Rebellion version maintains all your classic gameplay but with several new improvements and features two new characters: Alisa Bosconovitch - an android with jet wings and spinning limbs who was built in the image of Dr. Bosconovitch's deceased daughter, and Lars Alexandersson - an unknown descendant of Heihachi Mishima and leader of a rebellious Tekken Force faction fighting Jin's tyranny.
Tekken 6 features bigger stages with more interactivity than its predecessors, such as walls or floors that can be broken to reveal new fighting areas. The new character customization feature has been enhanced, certain items have implications in some aspects of game play and game balance updates are featured in this expansion, as well as all-new CG character art work
A new "rage" system has been implemented as well, giving characters more damage per hit when their vitality is below a certain point. Once activated, a reddish energy aura appears around the character, and their health bar starts to flicker in red. The rage aura can be customized with different colors and effects to appear like fire, electricity, ice, among others.
The game uses a proprietary graphics engine running at 60 frames per second as well as a dynamic physics engine named Octave Engine which allows water to behave accordingly to how characters move.
The graphics engine has been designed with focus on character-animation to make movements look more smooth and realistic which led to many animations being remade to either reflect the impact and damage caused or to create new possibilities in gameplay.
The developers considered animation specifically important for a fighting game and wanted to make the game "look good in motion" whereas previous installments had been designed to "look good on still-shots". Since Bloodline Rebellion, the game supports dynamic full-body motion blur, making Tekken 6 the first fighting game to do so.