xDDDDDD

I feel so ashamed that I only recognized Mario, Zelda and Mortal Kombat (they said... I mean sang it was it so it was obvious)

well you recognized most of them since the others are mario related (dr. mario and bowser´s theme)
but i can´t believe you didn´t recognize tetris theme it´s universal
and mortal kombat it´s difficult to remember cause it has little story with nitendo