Doors o' Plenty

Doors o' Plenty is an e-Reader level for Super Mario Advance 4: Super Mario Bros. 3. The level contains five Advance Coins and the Super Leaf e-Coin. Its official difficulty rating is ★★★★☆. This card was released as part of series 1 in Japan and North America.

Level Synopsis
This level is a maze with lots of doors as the name suggests and Boos. The music and theme were taken from Super Mario World. There is an area that contains a Coin Snake block, which leads to another room with an e-Coin inside. At the end of the level, a battle with The Big Boo, similar to the one in Super Mario World, takes place.

New Level Elements

 * Key and Locked Door
 * Coin Snakes
 * One-Way Flippers
 * ! Switch
 * Dotted Line Blocks
 * Exclamation Mark Blocks
 * A Big Boo