You will lose half your balance if you roll X

Number Spinner

Balance: $100

Bet Amount:

Number (1-20):

Odd/Even:

Instructions:

Start with $100
Minimum bet is $1
Choose a number between 1 and 20, or bet on odd/even
If you choose a number and win, you get 20 times your bet
If you choose odd/even and win, you get 2 times your bet
If the spinner lands on the 'X', you lose half of your money
When you have $0 left, you lose the game