I made a PL list for Z

[Void]

He did 2 against Vegeta? Wasn't it just one when Buu got mad.

Boo powers up when Vegeta calls him fat and repulsive, and then he powers up after Vegeta blows a hole through his gut.

 

[Ultimate Cell]

He did 2 against Vegeta? Wasn't it just one when Buu got mad.

Boo powers up when Vegeta calls him fat and repulsive, and then he powers up after Vegeta blows a hole through his gut.

That was the one I was referring to.

 

[ahill]

The 2nd one would be him blowing up that huge hole to which Vegeta was with his arm hurt afterwards.

 

[GSM123]

Is there any proof the third one was a power up? Some people think it was just an explosive wave.

 

[Void]

Vegeta's reaction to it tells us. He looks mortified when Boo is getting ready to go boom.