100m

100m is the final level of Donkey Kong. This level is different than all the others, as this time around Mario has to pull out the rivets attached to the steel girders holding up Donkey Kong. To do this Mario must simply jump over the yellow bolts and they will disappear. However Donkey Kong will make Foxfires appear by beating his chest, and this will make the level harder for Mario. However there are Hammers located around the level which can be used to destroy the Foxfires, although more will eventually be summoned. There is a maximum limit of five Foxfire sprites onscreen in the arcade version and four for its NES port.

Once Mario has disabled the eight yellow rivets, the middle girder will collapse and Donkey Kong will fall down to the bottom, banging his head on the ground. After this Mario will rescue Pauline and a heart will appear as the game ends. After this sequence, the game ends then repeats itself. However the screen will show the first level as 125m instead of 25m, the second as 150m instead of 50m, etc.