Can I make the floor break a little bit when I'm doing a super jump

I’m making superpowers to my character and I’m trying to make the floor crack a little bit when I land. How do I do that?

Many many ways. Best would probably be to apply a decal on the land location and maybe some particle effects Like in this video: Ground stomp test. - YouTube

If you mean you want the floor to literally break apart, then you’ll have to setup some sort of tiling system and break tiles you land on using destructible meshes