(Australia, idiomatic) To improve one's performance through practice or additional effort.

(video games) The option to play again through a previously completed game, carrying over characters, attributes, or equipment from the previous play session.

Excessive commenting on the actions and decisions of someone playing a video game, by an individual who is not playing the game.

present participle of back-seat game

The shell game, or thimblerig.

present participle of up one's game

simple past tense and past participle of up one's game

Third-person singular simple present indicative form of up one's game

(idiomatic) To mistakenly reveal a secret.

(video games) To commentate excessively on the in-game decisions and actions of someone playing a video game, whilst not playing the game.