The Bonus Pig is a golden piggy bank. They must be destroyed or grabbed in order to obtain the money. Three Bonus Pig are randomly generated per map at fixed locations. The money obtained from the pig is affected by tech.
Shooting the Bonus Pig will disqualify the player from achieving the melee only challenge.
- Some pigs that load into a map cannot be destroyed. This is common on manual turret missions.
- Also, some cannot be seen but can be destroyed by explosives.
- Like the Explosive Barrels, they gain more health when the virus mutates.