Okay, just watched it all:
Looks nice, I like the graphics! Clean, colorful and fun!
I like they didn't copy the "% energy bars", as that is Smash Bros "thing", not the 4-player fighting game!
But I disliked how they merged stages together... to me sounded like let's make 50% less stages by using 2 or more games for one stage, TBH
And my speculation for the boss has to be Sephiroth, the forever PS final boss.







