The health bar for each player is displayed at the top of the screen adjacent to the player's respective character portrait. The health bar is an abstraction for how many hits the player can take before being defeated. Damage which has recently been taken is displayed as red contents within the bar. Remaining health is displayed as green contents within the bar. When a player has 100% SB Gauge and is low on health, a player may use their Super Skybound Art. When a player's health bar is completely depleted, that player loses.
The SB Gauge for each player is displayed at the top of the screen below the player's respective health bar. The SB Gauge will display what percentage to which it is filled. When a player has 100% SB Gauge and is low on health, a player may use their Skybound Art and Super Skybound Art. A player can build their SB gauge by doing actions such as attacking, instant blocking, or advancing upon their opponent.
The Cooldown Gauges for each player are displayed at the top of the screen below the player's respective SB Gauge. The Cooldowns Gauge consists of a number of square meters which each correspond to one special move for a given character. These meters indicate the current cooldown status of a character's special moves. When a special move is used, the gauge corresponding to that move will turn gray and will then proceed to fill with color from bottom to top. The filling of the gauge indicates how the cooldown timer counting down. When the gauge is completely filled again, the special move will become usable again.
To find out the duration of your characters' cooldown, refer to each characters' pages or go to GBVS/Frame_Data to check it.