Doors to Doom

Doors to Doom is a Nintendo Adventure Book. It is #6 in the interactive book series.

Plot
In the middle of the night, Mario sleepwalks right into a mysterious pipe in the Mario Bros. shop. Naturally, Luigi follows him down, where they end up in Dr. Sporis Von Fungenstein's Doors to Doom Machine. The mad Goomba scientist sends to brothers to the skyscraper of Donkey Kong, where they must make their way up to the skyscraper to rescue Princess Toadstool from DK. When they do, though, she falls through a platform in the floor. The Mario Bros. run through another door on the top of the skyscraper to the jungle of Donkey Kong Jr.. They run up vines and chains to escape the chasing monkey.

Up at the top of the jungle, they meet Bowser. But they decide not to free him from the jungle. They escape from another door at the top, which leads to Subcon. They find themselves at Wart's castle. Wart is dressed like a skater, and offers a garage door opener for the bigger of the two's hats. They do trade, and use the garage door opener on a door down the way. There, they find Von Fungenstein, who claims that he was really on the side of good, and was merely testing the brothers' performance. Then he directs them through the right door. Then there is a celebration for them that lasts for days.