Perils of the Coral Reef is the second level in Defender of the Future. Like the second level of Ecco 1, there is an exponential increase in difficulty. A number of species are introduced for the first time in this level including poisonous fish, poisonous jellyfish and Ecco's first physical contact with sharks.
- Dolphin Race: A group of dolphins near the start of the level will challenge Ecco to a race around a circular area. For winning you will be rewarded with a vitalit.
- Finding The Young Dolphin/Saving The Turtle: A dolphin wanting to train his younger brother to fight sharks will ask Ecco to go find him. When Ecco does he is asked to save his pet turtle from a school of sharks. After defeating the sharks the young dolphin thanks Ecco. Ecco returns to the brother and leads him back to the brother. In return he is taught the Turtle Song.