Once the rivets are removed from the final level, Donkey Kong falls, and the two lovers are reunited. From there, the levels start over at a higher difficulty. Along the way, Mario must dodge a constant stream of barrels, "living" fireballs, and spring-weights. Although not as powerful as in other future games, Mario can find a hammer which allows him to destroy the barrels and fireballs for a limited amount of time. Additionally, Mario can also find Pauline's hat, purse, and umbrella for additional bonus points.
The gameplay of Donkey Kong is simple yet addictive. The player controls Mario as he navigates through the four industrial-themed levels, collecting coins and avoiding obstacles while trying to rescue Pauline from Donkey Kong. With its challenging level design and addictive gameplay, Donkey Kong remains a classic of the platformer genre.