Koopaling Confusion

Koopaling Confusion is an e-Reader level for Super Mario Advance 4: Super Mario Bros. 3. The level contained five Advance Coins and the Princess Peach e-Coin. This card was released in Series 2 in Japan. Its official difficulty rating is ★★★☆☆. It was originally exclusive to Japan, and only became available internationally when the game was brought to the Wii U Virtual Console in 2016. The key art featured Ludwig von Koopa.

Level synopsis
A level similar to that of the battleship level in World 8, the player has to cross over various maritime ships until the player comes to a dock. The player has to choose whether to pick the high route or the low route. The low route leads to a tiny ship at a dock with a pipe, while the high route has the player access a much larger ship from a catwalk above. The player has to fight Ludwig von Koopa at the end of the stage, with the fight depending on the path taken; the low path leads to a level playing field where he goes down after only one stomp, and the high path leads to a more typical contained area with uneven footing, where the usual three stomps are required to defeat him.

Advance Coins/e-Coin

 * 1) Floating above the moving lifts after the first ship.
 * 2) At the beginning of the higher portion of the second ship, accessible by using the hanging crate.
 * 3) In the next section of the ship, after the Hammer Brother.
 * 4) Before the higher Warp Pipe in the second area.
 * 5) In a small area near the Colossal Koopa Paratroopas.
 * Princess Peach e-Coin: Near the end of the level, by heading up the bolts to a section above and going across, the e-Coin is located near the end of this upper area.

Enemies

 * Hammer Brothers
 * Boomerang Brothers
 * Fire Brothers
 * Grand Goombas
 * Colossal Koopa Paratroopas
 * Piranhacus Giganticuses