A Dragon Ball vs. Sailor Moon crossover fighting game would be dope. Broken, a nightmare to balance, and to equalize everyone but dope.
Gameplay wise, it should play like a weird cross between DBZ Hyper Dimension with the multi-tier levels system from that game and the face pace action of a Guilty Gear game. Throw in a tag system similar to the Marvel vs. Capcom series. Both series deal with team work so a tag system make sense. Lord Frieza and Queen Beryl vs. Goku and Sailor Moon.
Think about it.
DBZ and SM characters interaction would be something to see. Imagine Sailor Pluto dogging Future Trunks on the ethics of time travel. Professor Tomoe (manga) and Dr. Gero working together on genetic engineering, using Tomoe’s Daimon technology, and creating more cyborgs. Plus both are experienced in the fine art of turning young girls into robots.
Hell, imagine the younger Z Warriors, (was that the legit name of that team or a dub name) Goten and Trunks up against the younger Sailor Scouts, Saturn and Mini-Moon. Granted, Trunks and Goten would have to fuse into SSJ3 Gotenks to even have a chance against Saturn and Mini-Moon cuz hax lol.
Balancing and power scaling would be a nightmare. Sailor Moon verse is stronger than the DBZ verse due to hax so there are issues with that. Stats will have to be equalized. It would not be a fun game if the Sailor Scouts just body everyone on the Dragon Ball side.
Finally, a Vegito Blue vs. Neo Queen Serenity beam struggle. Imagine that.