Reel Deal Slots Nickels & More?

Question

I have this game and was wondering if anyone knows what the door with the questions marks means? It's on the top row and when you roll over it with the cursor you get ?????? in the display.

I'm assuming that it's a section that becomes available when you reach a certain level, but not sure. I'm thinking that if it were nothing you wouldn't see the ???????.

Answer 1

my aunt ask me the same thing i couldn't figure it out either