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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.

Pixel Art refers to the charming, simplistic, retro/renaissance style of very-low-resolution graphics, such as from the 1977-1995 Atari, GameBoy, & Super Nintendo (SNES) eras.

Resources for building and relating to User Interfaces, how the user interacts with your program