There’s not much reason to look at Neo Geo CD games except possibly better music. Other than that, they are going to be worse versions of the cartridge games. The cartridge memory is so fast that the Neo Geo reads directly from it as if it was RAM. The CD drive is slow and data has to be copied into its limited memory, which usually means worse animation, missing sound effects, etc.
There’s not much reason to look at Neo Geo CD games except possibly better music. Other than that, they are going to be worse versions of the cartridge games. The cartridge memory is so fast that the Neo Geo reads directly from it as if it was RAM. The CD drive is slow and data has to be copied into its limited memory, which usually means worse animation, missing sound effects, etc.