World 8-4 (New Super Mario Bros. Wii)

After falling down a deep tunnel, Mario and Co. will have to deal with several Stone Spikes. There are Bulbers in the water, which help the player see. The second part of the level is infested with Jellybeams. They are the only light source in this section of the level. For the final part, the player will have to swim upwards through some pipes that make strong water currents. After entering a pipe the exit will be close.

Star Coins

 * Star Coin 1: In the first area, there are stone spikes above you. Find a hole in the top to access the area containing the stone spikes. Go to the left to get the star coin.
 * Star Coin 2: In the second area, there is a ? switch and some blocks containing bloopers and the star coin. hit the switch to break the blocks and get the star coin.
 * Star Coin 3: Near the end of third area, the star coin is in plain sight underneath a pipe creating water currents.

Enemies

 * Bulbers
 * Stone Spikes
 * Jellybeams
 * Cheep-Cheeps
 * Deep-Cheeps
 * Bloopers