An Aqueous Adventure

Umi no Naka wa Kiken de Ippai! (うみのなかはきけんでいっぱい！ The Ocean is Full of Danger!, unofficially known as ) is 24th e-Reader level for Super Mario Advance 4: Super Mario Bros. 3. The level contains four Advance Coins.

Level Synopsis
This level takes place underwater. As the title implies, the player has to evade many Fire Bars, spinning bars that have appeared in regular World 5, 6 and underwater enemies to reach the goal. Fire Bars here highly vary in length, velocity and orbit.