The piece that looks difficult to remove to me is the metal band around the head. At first glance, it looks like that piece is holding the head together.

I think @partyking had his trim powder coated.

Two shots from the upper right flipper are difficult, the ramp and the inner loop. This is due to the lack of a consistent feed to the flipper. However, changes were made to the code to help address this by diverting the ball into the pops when a shot needs to be made by that flipper.

I think this works well, it allows you a good chance of getting the ball to that flipper from the orbits, the upper left flipper as well as the tougher lower left flipper and random bounces. Still not easy but all the more satisfying.

I don't find them nearly as difficult as the SIM card shot in DI.

If I could make a change, it would be to add manual control to the diverters because the ball is not always diverted to the upper flipper when the ramp or inner loop is lit.

You could make it so that if the inner loop or ramp is lit, a shot to a spinner would enable the the diverters to be controlled by the flipper buttons. For example, left spinner hit, left button controls right diverter.

Double post

Maybe, but at this point, I don't feel it's necessary. I think in single ball play, the ball gets to the flipper often enough and the feed from the pops and chest burster target is visible and easy to track.

It's definitely more difficult in multiball play where you don't have time to take your eyes off the action to track the ball and line up the shot. In this regard, it may be a bit more challenging than other games that have a shot that consistently feeds an upper flipper, but not to the point of being unfair or not fun, IMO.

If I were going to try and increase the percentage of feeds from the pops to the upper flipper, I would play with the sensitivity of one or more of the pops. However, this will effect the number of pop hits so might not be worth it even if it's effective.

Good idea, doesn't seem too involved. Maybe a blow dryer, a relay and an Alien bust. Air shoots out the mouth.