I went to go and play Dr. Bacteria to practice getting a higher score, and found something incredible; after the cycle where your score is ~042400, the game no longer speeds up. I was able to play the game at its highest speed until 070200, where I made a small blunder. Theoretically, the minigame can be played indefinitely, because the speed at which it goes never extends beyond human capability due to the cap. I can definitely see runs of up to 10 minutes for this endless game, for those who are able to focus on the game well-enough. Perhaps even an hour, haha. Because Dr. Bacteria EX actually has no end, what should happen with the category should an entry be submitted beyond the final Tempo Up?