Spectrobes follows the story of two planetary patrol officers, Rallen and
Jeena, who embark on missions as they travel throughout the Nanairo planetary
system collecting mysterious fossilized creatures known as Spectrobes. The
Spectrobes hold the key to defeating the merciless Krawl from achieving their
goal of galactic domination. Players will search seven planets to find and
acquire fossils and minerals. Once a fossil has been located, the player will
delicately excavate the fossil from the ground using the stylus on the touch
screen to access a variety of tools from different-sized drills to an acidic
solvent that melts away debris. When dust particles cloud the specimen, players
can clear the surface by blowing on the microphone.

Once fossils are obtained, they are awakened in Rallen's spaceship laboratory
using an instrument that relies on the player's voice. Maintaining the correct
volume and pitch will awaken fossils to become Spectrobes. (If players prefer to
remain silent, they can carefully blow on the microphone, creating varying
sounds that result in a more challenging but equally rewarding result.) As
creatures are obtained and awakened, they'll be nurtured with minerals in an
incubation room to evolve into stronger creatures. The player will then need to
select two powerful Spectrobes to accompany Rallen into epic battles against the
enemy Krawl.