I'm playing Mega Mall Story on PC, and I can't get Rank #1 or the Casino.
Right now my best money maker is the Observation deck, I've had bowling Alley and Supermaket take that place as well. Every time I rank #5.
I have 24 combos, (used to have 25 combos, but I moved the supermarket away to get a different store to be the most profitable thinking that was the issue). I have all the customers/regulars except the duck that needs the casino. Now on year 30 and still no #1 ranking...

Thanks for the help!