Quoted from coz6:

I am with you off behavior in 6.5 after update sent a msg to JJ about this today. Freeze and won't boot right after update for the first game only.

Quoted from boomgopinball:

The munchkin color tells you which munchkin mode is available if you spin around the munchkin pf enough times ( I think it's 7 to start with). If you look to the right of the mini flipper there are little colored squares that tell you which mode corresponds to that color. Red is Welcome to Munchkin land, Blue is Munchkin frenzy, Green is Lollipop lullaby, and orange is Munchkin Multiball ( you need to start the previous 3 to qualify this). You qualify the Munchkin playfield by completing the rainbow targets, then pop it up the center ramp, spin around 7 times and Robert's your mother's brother. Now, if you complete the rainbow targets you can basically 'pick" which mode you want to go for before you shoot it up the center ramp by hitting the rainbow targets again. Each hit changes it from red to blue to green ( if you haven't started any, if you have it skips the ones you already started). I prefer blue (munchkin frenzy). If you stack that with an emerald city MB and multiply it with a crystal ball mode you're in for a shower of points.

The owl's eyes indicate if you have a haunted forest mode running. You hit enough pops to qualify the mode (7), this will start the arrow near the hainted forest flashing, then hit it into the saucer on the right THROUGH THE POPS not the spinner. This starts a haunted forest mode.
There are a number of game walk throughs available on the next. But this one is the best ( J/K) It's a very very complex game and I still find things to do!