Sparring Wario

Sparring Wario is the boss Microgame that is found in the Introduction folder in WarioWare, Inc.: Mega Microgame$!.

Gameplay
The point of the game is to have Wario destroy a punching bag. After several hits, Wario will charge up for a super attack. Hitting the punching bag while he's in super mode will destroy it. However, if Wario gets smacked by the punching bag, the microgame is lost. If Wario doesn't do anything, the bag detaches from its chain, knocking him over.

As the microgame progresses, the punching bag becomes heavier and Wario will have to punch it more times to destroy it.
 * 1st level of difficulty: The bag will take five punches to destroy.
 * 2nd level of difficulty: The bag will take seven punches to destroy.
 * 3rd level of difficulty: The bag will take nine punches to destroy.