Rollodillo is an armadillo-like boss in Super Mario Galaxy 2. It is fought in the Boulder Bowl Galaxy in the mission Rock and Rollodillo.
Rollodillo is a large beast with a reptilian-like face and mammalian body which is covered in thick blue fur. He has a hide made of pieces of rock which covers the majority of his body minus his rear, face, and underbelly.
, before exploding.
He attacks mainly by rolling around the planetoid in a fashion similar to a boulder. Mario can only fight Rollodillo while Rock Mario. There are a total of two rounds. When Rollodillo gets dizzy and stops rolling, Mario will need to transform into a boulder and ram into its weak spot, its rear; a Spin Attack is rendered useless against this boss. Mario will need to hit Rollodillo's rear four times. After this, the boss will explode and grant Mario the Power Star.
 Names in Other Languages
|Goromadillo (portmanteau of gorogoro, the Japanese onomatopoeia for a rolling object, and armadillo)
||Portmanteau of 'armadillo' and 'ball'.
||Daegulmadillo (Portmanteau of DaegulDaegul, which means to roll, and armadillo)