Strombonin-msm!

A strombonin is like a unicorn or a pony; it has a pony's body, blue fur, cat-like paws with three toes, six legs (four for standing and two more on its chest for grasping things), a tail like a standing curl or swirl of the same blue color as its fur, purple scales covering its head and back down to its tail (but not its belly, face, or chest), and a small unicorn-like horn on its forehead of the same purple color as its scales. It has yellow lips.

Bonin is Strombonin's best friend. Strombon is like a large, pink slug. It has 4 or 5 pink antennae with its eyes at the tips. Its body is inside a large purple seashell, and at the back, at the tip, it has a hole to make a trumpet sound.

MSM is a game where there are islands like air, water, ice, fire, bone, etc... and there are monsters that sing, can play an instrument, have a companion to help them play, and more.