THE GOOD: Freedom to do whatever you like Atmospheric - nice combination of music and visuals Quite a challenge
THE BAD: Very difficult in places
SUMMARY: The basic gameplay has you controlling Ecco, through a vast amount of beautifully detailed (for it's time) sea levels ranging from coral reefs, to icy seas and even pre-historic times. Plenty of enemies lurk in Ecco's way as well as puzzles to solve to continue and the constant need for oxygen.
One of the things I like most about the game is how challenging it is, this is not something you'll breeze through, the sheer volume of levels and difficult puzzles to finish should keep you busy. Some of the puzzles are very difficult due to the combination of executing them successfully and keeping Ecco alive, either from being eaten or drowning. He's a dolphin remember, he needs air.
There is also the fact that, this is one of those games where if you get tired of your task, you can just swim around, jump out of the water, perform tricks, go catc...