hmm...well mario can't physically go super sayain,hes not part of the sayain race,hes human(big-nosed human,but human).alvin_earthworm made mario appeared like he was super sayin in SMBZ episode 2,but aside from that,no mario can't go super sayin...but it would be cool if he could.
If Mario went Super Saiyan, then Goku, Vegeta, Gohan, Goten and Trunks wouldn't be as special anymore, seeing how they're they only saiyans left (not including Pan, who's only 1/4 saiyan)..... And I can't see Mario as a blonde.... या with muscles....