I really don't know if the game is designed this way but I don't think I've ever seen this. Bonus games simply don't pay out. I mean you wait for a bonus game to get two to three times your bet? I thought it might be an anomaly but it's every bonus game is extremely low payout. I've never seen this low before. Not sure if it's an algorithm problem or a design feature but nothing turns off the dopamine faster than a game that's a total dud.