Mode

From Styleguide

mode

A distinct user-selectable play variant within a game.

Capitalize mode names on all references. Do not capitalize the word "mode" itself. Do not refer to a specific style of play as a mode unless the game explicitly refers to it is as such. Do not refer to a selectable difficulty level as a mode.

Common modes seen in many games include:

• Arcade mode: A simplified version of the game intended to give the player an immediately gratifying experience without requiring tutorials or significant practice.
• Ghost mode: A mode that pits the player against a computer-simulated replay of a human player’s earlier performance.
• Practice mode: A training area that allows the player to master difficult principles in a game.
• Story mode: A running narrative unveiled as the player completes individual levels or missions.
• Survival mode: Pits the player against a constant onslaught of enemies or challenges with limited resources.

Example: Playing Street Fighter II: Hyper Fighting in Turbo mode is guaranteed to challenge even the most accomplished gamer.

Also see: difficulty.