Bomb Derby is the third available Bros. Attacks Mario can use in Mario & Luigi: Dream Team. Mario obtains this Bros. Attack after gathering 10 Attack Pieces in Driftwood Shore.
Immediately after initiating this attack, Mario and Luigi run into the foreground, and Mario will chuck a bomb into the sky, which causes twelve bombs to fall on to Luigi, all of which Luigi catches in a stack. The player must move the 
to the right to pass the bombs to Mario, and press 
to make Mario hit the bomb toward the enemies with his hammer, each exploding upon contact. If Luigi takes too long to pass the bombs to Mario, any remaining bombs will explode and the Bros. Attack will end. The bombs will also bounce out of sight if Mario fails to hit them. At the end of the stack lies a big bomb, which will do regular damage like the other bombs and end the attack. Hitting 5, 7, 9 and 12 bombs will result in a "OK!", "Good!", "Great!" and "Excellent!" rating respectively.
The design of the bomb is similar to the bombs used by Lemmy Koopa in New Super Mario Bros. U.
This move will return in Mario & Luigi: Paper Jam. This attack will still be used by Mario, and it retains its functions, except the last bomb deals higher damage.
Description
Slide right on the Circle Pad to toss bombs then hit 'em with the A Button! Don't delay your swings! Toss a bunch, feel the tempo, and hit all the bombs!