Fisher-Price Think & Learn Rocktopus15 musical instruments, 5 musical styles, 3 ways to play1 rocking toy! 3 play modes: Math, Music, and Game Rocktopus responds to every musical instrument as kids insert or tap them, helping guide them through game play Kids are in control of their musical creations! Add or subtract instruments, control the tempo & add sound effects Download the free Rocktopus app to create cool music videos with this rockin dude!