Get ready for High Stakes Bingo every Wednesday at 6 PM at Thunderbird Casino Norman. Nine bingo games will be played, with eight straight-line games awarding $25 in Free Slot Play and a final blackout game worth $250 cash. A progressive blackout bonus starts at a $1,000 minimum with $100 added each week, awarded when blackout is earned in 55 balls or less. Players must earn 25 points on their Thundercard to receive a bonus bingo card, and an additional card is earned with 100 points. Management reserves all rights.