Deep Sea Adventure
3 - 2

Japanese Name:

Shinkai chō sa



Previous Level:

Dolphin Barbeque

Next Level:

Deep Sea Ruins

Alternate Level:



The level has jellyfishes that make the level to be clearly seen temporarily.


Blurp, Urchin, Squidge, Cheep Cheep, Rip Van Fish



Power-Ups & Items:

Super Mushroom, Fire Flower


400 seconds

Deep Sea Adventure (しんかいちょうさ / Shinkai chō sa Lit: Deep Sea Investigation) is the second level of the Bay world. An underwater level, where Mario faces the dark realms of the sea with jellyfishes that will light up his way.

The level has no secret exit.

Deep Sea Adventure

Deep Sea Adventure (in the circle) in the world map.

The LevelEdit

The level is completely underwater. The level starts with the level being dark and only Mario/Luigi ,Yoshi and the enemies can be seen. In order for the level to be clearly seen temporarily, you have to encounter a floating jellyfish (with a face that can't be seen and randomly changes colors). Before the goal, there are a lot of Squidges. 

Demos it appears in:Edit

  • Demo 6
  • Demo 6.5
  • Demo 7
  • Overworld Demo
  • demoOnly1
  • Dragon Coin # 1
  • Dragon Coin # 2
  • Dragon Coin # 3
  • Dragon Coin # 4
  • Dragon Coin # 5

Dragon CoinsEdit

Dragon Coin 1Edit

It is below a rugged structure.

Dragon Coin 2Edit

Keep going straight ahead until you find it.

Dragon Coin 3Edit

It is at the beginning of the part where there are many Squidges.

Dragon Coin 4Edit

A little farther than Dragon Coin 3.

Dragon Coin 5Edit

A little farther than Dragon Coin 4.




The level's graphics are from Super Mario World 2: Yoshi's Island for the foreground, from Donkey Kong Country for the background and from Super Mario World and Donkey Kong Country for the enemies.


The music used in this level is "Water Level" from Super Mario World.

Custom MusicEdit

The music used in this level is "Podol" from Romancing SaGa 3.