So, the post before BioApple sad 120, then BA said "The number of stars I have in SM64DS", then you said "121"? You do know there are 150 stars in SM64DS, so it's extremely possible to have 121 stars.
Also:
The difference between the vertical ratio of widescreen vs standard definition and the difference between the horizontal ratio of widescreen vs standard definition.
Just to prove something
Widescreen = 16:9, standard = 4:3
16-4 =12
9-3 = 6
Therefore 12, 6 or 126