A mix of Puzzle Fighter and regular fighting game combat. Definitely weird but it ends up playing as a simplified version of Street Fighter. The systems are deceptively complicated and you really have to master the costume combo system to make the most out of the experience.
Really the fanservice is where this game shines the most. Seeing so many Capcom characters gathered in the backgrounds and in the costumes that the regular fighters can change into during gameplay was definitely the highlight for me. Overall it's a fun little distraction and I find it really cool to see the Capcom gang wind down and have some fun here.