>>21565
You can try making the meshes like an incredibly viscous liquid where characters bounce over the surface, if your engine allows for this.
If you are using a custom engine, you can try to make the mesh "transparent" to the player when falling over them, then return them to the original "floor" of the cloud using a force-based approach. This way, your characters will look like they bounce over them.
Also make particles move whenever a character passes through them.