Burger King's Royal Perks members have a chance to score free Royal Perks Crowns Points through April 8th by playing the Fiery Buffalo BK Ball game. Upon playing, members could also win various food items with a $1 purchase offer that's valid for 24 hours after obtaining it. The game provides an array of rewards with different odds of winning, ranging from free Whopper® Sandwiches to additional Crowns points. A limit of one reward per account per day is enforced​ 

Here are the rewards available, along with their odds and limitations:

a. One (1) free Whopper® Sandwich with a minimum pre-tax purchase of $1.00. Odds: 2 in 64.
b. One (1) free eight (8) piece Fiery Buffalo Nuggets with a minimum pre-tax purchase of $1.00. Odds: 4 in 64.
c. One (1) free eight (8) piece Nuggets with a minimum pre-tax purchase of $1.00. Odds: 4 in 64.
d. One (1) free Fiery Buffalo BK Royal Crispy Wrap with a minimum pre-tax purchase of $1.00. Odds: 4 in 64.
e. One (1) Medium Size Soft Drink (Default Sprite) with a minimum pre-tax purchase of $1.00. Odds: 8 in 64.
f. One (1) free four (4) piece Nuggets with a minimum pre-tax purchase of $1.00. Odds: 4 in 64.
g. Thirty-two (32) Crowns. Odds: 10 in 64.
h. Sixty-four (64) Royal Perks Program points (“Crowns”). Odds: 6 in 64.
j. Sixteen (16) Crowns. Odds: 16 in 64.

Limit: One Reward per Account per day.