|The Marble Sea|
|Game||Ecco the Dolphin|
|Objectives||Find the exit.|
|Level #||13 (Genesis), 19 (CD)|
|Previous Level||Deep Water (Genesis), Deep Gate (CD)|
|Next Level||The Library|
|Typical Creatures||Marble Sea Jellyfish, Leopard Shark, Schooling Puffer Fish, Gold Stone Eater|
The Marble Sea is the thirteenth level of Ecco the Dolphin in Genesis, or the nineteenth level in Sega CD. This is the first Atlantis level.
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