Is it possible to control the item frequency in smash battles? In all three previous games, the Item Switch had an appearance frequency control that would set how often items appear overall. In SSB4, this control appears to be gone. Is it still there, but harder to find, is it unlockable, or is it just gone?
It is no longer included in the game. (Sadly)
You can merely adjust the items and whether or not they fall.
Here are a few sources I found, and while none have concrete evidence, no evidence pointing towards an unlock or hidden feature has been found.