Weel, after 3:10 hours a dont have a final ideia yet! The first idea that i have was about pirate, then when i saw the various others participants using this ideia, i changed my mind. So i have 3 ideias :

1- Marines turtles-
The player control a little turtle, since the birth until the procriation, visiting other islands and knowing others animals

2-Sufing —
The player will surf in a surf competition through various islands, the gameplay is high inspired in the tony hawks

3- Islands card
The player will make a archpelago using card with efects and quantify of that efect
So, i will sleep, and later i choose one idea, see ya!