Boo

Boos are the main ghost enemy in the SMG series.
== Attack Strategy ==
Like in other games, Boos follow behind Mario, hoping to hit him. If Mario looks at a Boo, it will freeze, turn into an object it will drop upon defeated, and not move unless Mario looks away. 
==Trivia==
*Boos were made by Takashi Tezuka's wife, as she is shy, but bursted into anger upon Tezuka coming home late.http://www.guardian.co.uk/technology/gamesblog/2010/sep/13/games-gameculture
==References==