How is that a result of the Mark of Mastery Exam though? Aqua didn't get an evolved version of her Keyblade until the end of BBS, not after the Mark of Mastery Exam.
This. It really had nothing to do with the Mark of Mastery Exam. Terra got an evolved version of his Keyblade as well.
its been bugging me but does riku get a special keyblade after he reaches the
mark of mastery and becomes a true keyblade master like aqua did in
bbs?????/
Unless you are referring to how Aqua inherited the Master Keeper. However, that still didn't happen because she passed the exam, that was because Eraqus was killed and she used it to seal the Land of Departure.