Knockback Bros.

Knockback Bros. is a Bros. Attack used by Mario and Luigi (but must be started by Luigi, making it "his" move) in the game Mario & Luigi: Superstar Saga. Luigi smacks Mario with his hammer, making him a ball, and putts him like a golf ball in the first version, but hits him like a baseball in the advanced version. The buttons pressed are B (to whack Mario) and B again (to send him shooting toward an enemy).