Moon

One night when the moon shines, a boy is sucked into a certain game world called "Moon". The world's inhabitants and the animal's souls, too. A Hero leaves behind the corpses of the animals he's killed all over the world. And the boy must catch the soul that manifests, whereupon the soul has whisked away to the Moon and the boy obtains "Love."
Box contents
Switch Game: Moon
"Moon Note: Back Stage ’97" secret development documents
"The Child of Happiness" Moon voice theater CD
"Imaginary Moonscape" theater guide cards