So, I randomly decided to search "Smash Bros" on the Danganronpa subreddit just to see if anything interesting had been posted and holy moly there's gold in them there subreddits as I found
this post.
Someone did an amazing DR x Smash concept, complete with some cute move demos with 8-bit sprites! It also has an interesting balance to the kit, with Monokuma appearing for several moves (including the Final Smash), a lot of different UI features from the Trial Games being represented, and even some moves being pulled from the various post-games. It's quite long, but it's totally worth the read-through if you have the time.
I commented on their post to see if I can get permission to put it in our OP here, but I was too excited to wait to share it in general as it's just
chef's kiss.