Beta Kretin

Beta Kretins are enemies found during a boss fight with the Alpha Kretin in Mario & Luigi: Bowser's Inside Story. Beta Kretins are the blue, ball-shaped creatures that make up the Alpha Kretin and Alpha Kretin-X. Beta Kretins are the ones who captured Princess Peach in the Flab Zone. Once Mario and Luigi get up to the point where Peach is, the Kretins split up to form the Alpha Kretin.