This game need a lottery!
Ticket cost 5 Rubies
It was nice if you buy tickets with rubies.
And the awards will be like this:
You have 0 correct numbers. Receive: 0 rubies
You have 1 correct numbers. Receive: 5 rubies
You have 2 correct numbers. Receive: 10 rubies
You have 3 correct numbers. Receive: 20 rubies
You have 4 correct numbers. Receive: 50 rubies
You have 5 correct numbers. Receive: 100 rubies