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When jumping over obstacles is one of the main actions, challenges, or mechanics of the game.

Uses two-dimensional "sprites", 2D images created and used on a flat plane, as opposed to the three-dimensional models or environments found in 3D games.

Only requires a single button (commonly the left mouse button or a single key on the keyboard) to operate the game's controls or interact with it.

Games that challenges the player's sense of rhythm.