Bakura has gone crazy:
http://www.youtube.com/watch?v=mylvquqGSrI

Kaiba's Phone calls:
http://www.youtube.com/watch?v=ul5e8bRdJ-s

Yami, Bakura, Kaiba and Joey Have Gone Crazy:
http://www.youtube.com/watch?v=NHtXHbrbl84

Marik Has Gone Crazy:
http://www.youtube.com/watch?v=cOf_ce1ak4w

Marik Has Gone Crazy 2 :
http://www.youtube.com/watch?v=TLAv42Uo9DA

Kaiba's Silly Phone Call:
http://www.youtube.com/watch?v=LSNfyTOY5uA

Kaiba & Joey "Super Mario Theme":
http://www.youtube.com/watch?v=pkyyoSZdlFk

And that is all....