Health

In Colt Canyon health is represented as hearts. To the player health points are always integer values. One heart corresponds to two health points, because a heart can be displayed has completely full (2 HP), half-way full  (1 HP) or empty  (0 HP).

Therefore, when displaying damage values a damage of two is actually the value of just one heart.

The health of all objects and characters can be expressed as hearts, but usually only player's health and that of companions/prisoners is displayed as such. The health of enemies is usually not shown, except for the health of bosses and elites, which are indicated by their alertness indicator.

On this wiki some enemies' health values are represented as hearts, while damage values are represented as integers that are shown to the player through damage indicators. If an enemy has 10 hearts and a weapon deals 10 damage the enemy can take two shots, because 10 damage is actually 5 hearts.

Restoring health
To restore health the player needs to find medicine or choose the right upgrade.

Damage indicators
The player has the option to enable/disable damage indicators. These are red numbers that pop up whenever the player is damaging enemies or objects. The indicate the amount of damage the player has dealt to that object.

When looking at the damage indicators you will notice that the same weapon deals different amounts of damage to different things, that is because some objects react differently to certain types of damage. For example explosives deal more damage against destructible objects than against enemies.

Alertness indicator health bar
Boss enemies and elite enemies will display their current health as part of their alertness indicator.

Trivia
In the background the engine is working with floating point values, but because point values are no very readable, all damage values are multiplied by two before being shown to the player.