Caspo

Caspo(Boo in Mario)
Caspo is a Ghost Species  that can be move anywhere but except that his main weakness is when the Manic is look at the direction Caspo is at causing Capso to hide unable to move untill he looks away.

Trivia

 * Caspo's name is reference to Casper the Friendly Ghost
 * He is the only Playable Character which appears at the Pipe Guessing Game due to his hiding ability when the Manic is looking at him