Hey, M-M. It breaks down pretty much like this. I'm not sure what the exact cutoff is, but fewer saved Muds than about 50 results in the "bad" ending; more than 50 gets you the "good" ending; and all 99 gets you the same good ending plus a bonus. I can't say that the all-99 bonus is worth it if you are getting frustrated -- it's not more gameplay. I personally think that the biggest reward for saving everyone is just the satisfaction of having done it. But, at very least play for both the bad and good endings -- I thought the bad ending was a riot.
