Here is the full list of all 22 Sparkle 2 Evo achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Evolve to stage 4
Discover a Phantom
Unlock and finish "Squidworm" zone
Discover a Fish
Discover a Anemone
Unlock and finish "Octury Deep" zone
Evolve to stage 3
Discover a Bloodbelly
Discover a Glass squid
Discover a Skeleton
Discover a JellyFish
Discover a
Discover a Glowing squid
Discover a Malaria
Evolve to stage 2
Discover a Nebula
Eat 100 species
Eat 50 species
Discover three basic elements
Eat 10 species
Finish the tutorial
Evolve to stage 1