I like deep rules but they have to be achievable and easy enough to understand what is going on. I still have no idea with LOTR.
Here is some useful help I got from someone on LOTR:
"LOTR - you won't be disappointed
It has the rare quality of giving you a sense of achievement whatever standard of player you are.
Almost everyone is guaranteed at least one multiball, and playing the three movie multiballs and then destroying the ring is not easy but is within the grasp of most players - it's just hard enough that you feel a real sense of elation when you do it and you get rewarded by a suitably spectacular response from the machine.
However, once you have mastered that you will soon realise that there are many extra levels of depth to keep you hooked.
The next stage is to play for the modes (and to allow the movie multiballs to just come along by default)
Every completed mode gives you one of the very valuable gifts of the elves - and most are moderate to easy to complete - only witch king I find hard.
Playing all the modes qualifies a special mode "there and back again" which allows you to collect one by one all the points you earned in each of the modes.
Then, rather than just playing the movie multiballs you will want to complete them. Each completed one also earns a gift of the elves and some great call outs and rewards.
The final goal, and one which very few players ever achieve, is to reach the Valinor wizard mode - to get there you will have to have completed all the movie multiballs, played there and back again, collected all the gifts of the elves, and destroyed the ring. You may never get there (no-one has ever done it on my game although there have been some very near misses) but just the fact that it is there keeps the challenge alive!
I've counted at least 7 different multiballs on this game, and don't forget too the "help" from Gollum who, as well as adding a ball, will double or halve your scores depending on what mood he is in, meaning that timing the big payoff shots becomes very important."