When you use the piggy bank it actually collects your bells. I think it's like a mini atm, as in it transfers your bells to the bank
Also if you were to press "A" on the piggy bank while your wallet is empty, it doesn't make the 'coin' sound. Just thought I'd share!
Did anyone else know this? Am I the only one left in the dark? xD
Did anyone else know this? Am I the only one left in the dark? xD