What do you need for a bunny?

 
What do you need for a bunny?
I know they need a cage,food,water,toys,hay,love,treats,whe… but what else. Like is there anything really important they need??
A shelter to go into (placed inside the cage) when they are feeling tired or stressed.
That's pretty much it oh n maybe another bunny friend :) (I suggest one from the opposite sex ;) )
as long as u are with it at tims and plaay with it it should be fine