Vexing Doors is an e-Reader level for Super Mario Advance 4: Super Mario Bros. 3. This card was released in Series 2 in Japan. Its official difficulty rating is ★★★★☆. It was initially released only in Japan, but it became available internationally when the game was released on the Wii U Virtual Console in 2016. The level contains five Advance Coins. The key art featured Lemmy Koopa.
Entering the second door, Mario finds himself in a room with another Advance Coin and three doors, but only one of them is visible without pressing a Switch Block.
The next room has more doors:
The battle with the Big Boo is similar to the previous one: Mario must toss three Ice Blocks at him, while avoiding two regular Boos. One of the regular Boos is faster than usual.
Names in other languages