I played through Pokemon Moon when it came out and naturally would like to buy Ultra Moon to play. However, I have some of the legendary event distribution codes from this year to redeem, but you get the same Pokemon if you have S and US or M and UM. So I want to know if it's worth crossing over and buying US solely for the sake of getting the other legendary distribution 'mons. Will the storyline be fucked up? Also, are the legendaries available to catch in UM the same as the ones that were available in Moon? Because it would be nice to be able to catch the ones that were exclusive to Sun.