You must take on the role of a trainee scientist in the Takahashi-Cherkasov Lab.

For this you must keep this strange creature alive for 30 days without it

 suffering any harm and before it devours your entire team of scientists.

It's a game of trial and error, but also of observing 

how each element can have a different effect on the creature.

It's like my own bizarre version of the famous Tamagotchi ( たまごっち ).