For my first post, I would like to ask if this is normal operation on Star Wars:

During FEVER mode, I have read that you must get at least 2 balls (or more?) in the special gate (door) in order to advance to the next round. There are 15 rounds.

On my machine, I found if I leave it sit on its own without shooting any balls, it will simply advance through all rounds by itself. It sits in each round for an appropriate time to run through all the graphics and then moves on. I don't think I have stuck sensors, or else it would trigger reward balls to come out. I also got the 100 Bonus countdown at the end. Other times when I do get balls in the door on each round, I sometimes don't get the 100 Bonus, but rather a quick reel spin mode with easier bonus and jackpot odds. This may be a random thing.

Does this sound like a machine problem? Though I get no reward balls if I don't shoot any, shouldn't there be some kind of skill required to advance to the next round?
All else seems to work normally. I have it in semi-cyclic mode right now. Thanks for any help.