What do the Special Coins do?

Like for an example...

I think you're supposed to use them in the Coin Machine

Oooh, I see. :3

Thanks!

Yea, the Coin Machine is a little hard to find so I think people forget about it ^^ When you go to Centropolis it's in the lower left corner, a staircase that says "Lower West Side". That's where it is :3

No problem :)