Once he is litter boxed trained more area can be added. Toys Rabbits need toys for mental stimulation and physical exercise. Rabbits love and need toys to chew on. Rabbits must have a means to keep their constantly growing teeth worn down. Rabbit toys should be safe.
Rabbits can ingest plastic.
Cardboard boxes are great to chew and climb in and out of. Old telephone books are fun to play with and shred. Parrot toys make equally good rabbit toys. Rabbits love baby toys like sturdy plastic keys. Cat cubbies and condos with ramps and lookouts are great for rabbits.