Gameness

[1] Dogs that demonstrate this trait can also be described as "ready and willing", "full of fight", "spirited", or "plucky", and are able to resist mental and physical challenges in order to win a fight.

[3] In dog fighting pitbulls bred for gameness are valued as the ability to not quit, despite injury, dehydration, exhaustion or broken bones.

The scope and method of training to develop a game dog varies dramatically depending on the level and experience of the dog-fighter.

Pertaining to working terriers and other small hunting dogs, earthdog trials are used to determine the dog's gameness in hunting dangerous pest species underground.

The American Working Terrier Association currently offers a Certificate of Gameness (CG) title[6] which is more of a basic prey drive test.