My record was 5.7 million in a Rice's Food Market in Galena Park, TX. A couple of my friends were watching but had to leave to play a ball game. When they came back, I was still playing on the same quarter. I had no been planning to play so long and that Coca-Cola was really wearing on my bladder near the end, lol.
The real challenge was to always finish a game at 999,975 so that no one could pass you up on the High Score list, and I had 3 or 4 entries with that total