https://donkey-kong.io is a classic arcade game that was first released by Nintendo in 1981. The game features a character named Mario who must rescue his girlfriend, Pauline, from the clutches of a giant gorilla named Donkey Kong.

The gameplay of Donkey Kong involves navigating through a series of levels, each of which is filled with obstacles and enemies. The levels are arranged in a vertical fashion, with Mario starting at the bottom and working his way up to the top.

In each level, Mario must jump over barrels that Donkey Kong throws down at him, climb ladders to reach higher platforms, and avoid other hazards such as fireballs and bouncing springs. Along the way, he can collect items such as hammers, which he can use to break barrels and defeat enemies.

The game features simple but engaging graphics and sound effects, and its challenging gameplay has made it a classic in the world of video games.