Also, The Adventures of Chibi-Takeru and Chibi-Omni:
Omni: OMG TAKERU! You know you can't actually transform!!
Sound effect: Bah ha ha ha
Takeru: Shut up Omni! I'm going to hang with Power Blue, she understands me!
Sound effect: BAH ha ha ha ha ha ha
(Of note, Henshin=transform. The pose I'm doing is the same as Kamen Rider Ghost's transformation pose)