Aqueloo is a small drop in a huge, dangerous and dying world. He has been sleeping for too long, but now a voice has awakened him and he must step into the unknown. Using his ability to change his physical state (in gas, liquid or solid) he must overcome every adversity, obstacle and enemy on his journey to save his world.

Initially, you can only jump from puddle to puddle, avoiding all the dangers that threaten you. Later, he will remember how to change his physical state and he will learn to fly (changing to gaseous state - cloud) and to crush his enemies (changing to solid - ice)