Assuming that there is a no way to change into Zero Suit Samus with out a smash ball and/or before a match, these are rules that lets people play ZSS Competitavely.
Rule #1 At the beginning of the match one must state that he/her will use ZSS
Rule #2 Items On with only smash ball on At High Percent (assuming there can only be one smash ball on the stage at one time)
Rule #3 Samus is to get the smash ball using only A attacks
Rule #4 Character #2 Should be standing still until ZSS status is Obtained
Rule #5 ZSS must use her final smash in the opposite direction of character #2
Rule #6 Once ZSS is changed into. Anyone can get a smash ball but may NOT use their Final Smash
Rule #7 If a Final Smash is used at any time After the Change of ZSS that player Takes an automatic Loss
Note: This is NOT an official rule and dont flame accordingly. I am just trying to help those who wanted to play ZSS competitavely a Chance to actually do that
Rule #1 At the beginning of the match one must state that he/her will use ZSS
Rule #2 Items On with only smash ball on At High Percent (assuming there can only be one smash ball on the stage at one time)
Rule #3 Samus is to get the smash ball using only A attacks
Rule #4 Character #2 Should be standing still until ZSS status is Obtained
Rule #5 ZSS must use her final smash in the opposite direction of character #2
Rule #6 Once ZSS is changed into. Anyone can get a smash ball but may NOT use their Final Smash
Rule #7 If a Final Smash is used at any time After the Change of ZSS that player Takes an automatic Loss
Note: This is NOT an official rule and dont flame accordingly. I am just trying to help those who wanted to play ZSS competitavely a Chance to actually do that