I had all four of the service buttons stop working on my IMDN. I eventually narrowed it down to the conductive silicon membrane that makes contact with the PCB. The conductive painted dots were no longer conductive and wouldn't register when pressed down. I had planned to repaint with new carbon conductive paint;
https://www.amazon.com/gp/product/B01MQ4F1T5/ref=ppx_yo_dt_b_search_asin_title

But instead I tried a simpler fix first; adding small squares of copper foil tape. This ended up working great.
https://www.amazon.com/gp/product/B01DVZ1G1C/ref=ppx_yo_dt_b_search_asin_title

I would suggest if possible, the mod maker should try switching to TPU material. They would be essentially unbreakable.

Any confirmation that the video compression was improved from 0.90?

Magnetized balls getting hung up in the trough? This can cause weird behavior. Next time it happens, open the coin door and with a flashlight check that the balls are are stacked up tight against the eject end. If they are, go into switch test and make sure all the trough switches are reporting correctly.

Or, you can pull them out of the game again and see if they stick to each other.

GB was the first, I believe. However it can only be selected through the game menu.

No doubt, 21 power-ups! I just played through a game and I think I ended up getting enough, but it seems that if you collect enough for level 5, the power-up at the scoop will remain unlit until mecha godzilla SJP is collected. I of course couldn't get that SJB, so did not get to play the new mode. It sounds super fun. It wasn't clear to me if power-ups were still being collected after level 5 was pending.

Also, I am not sure if it has been mentioned before, but it seems there is a bug with the magna-grab collection behavior. If you go into a MB with the inlane magna-grab lit, rolling over the the switch will consume magna grab actually activating the magnet. This makes sense as it would be impossible to manage the magnet during the MB, but I would expect to either the inlane light to remain intact through the MB or to be automatically relit after the MB completes.

Yeah I think you get stuck in power-up jail until you get the SJP. Does Mecha jackpot progress carry over to following MBs if the SJB isn't collected?

Tail whip on the prem. Tail whip OR spinner on the pro.

Heat Ray collects on both versions.

You know...maybe the SJP can be collected through the spinner on the Prem? I took a closer look at Deadflip's GZ stream from yesterday and what do ya know....the spinner shot did collect the SJP. Not sure why this is.
https://www.twitch.tv/videos/1476121816?t=2h19m47s

Interestingly enough, on a later game, it behaved differently. My guess is either a bug or a nuance to the code.
https://www.twitch.tv/videos/1476121816?t=3h3m39s

This is what the tiltforum rulesheet says;

collect it at the Tail Whip / right spinner lane (Tail Whip exclusively on Prem / LE) within 20 seconds.

You collect Mech SJB then power-up #5 at the scoop. After that you shoot through the building to actually start it.

Interesting. Why does the light go out on the first video? It looks like it times out. Isn't that last spinner shot needed after the all the shield targets are cleared?

Makes sense. I had never cared about MG or figuring out how to collect power-ups. I feel so emotionally manipulated by this code update. haha

My go to for ghetto farming is three consecutive loops. Everything else boils down to "do something normal to game play"

From TiltForums:

Making a Super Secret Skill Shot - +2
Completing a Tier 1 Kaiju Battle - +2 for 1st try, +1 otherwise
1st City conquered - +2
Super Jackpot during Godzilla & Jet Jaguar VS. Megalon & Gigan - +1
Starting Powerline Attack - +1
Winning Tesla Strike - +2
Starting Bridge Attack Multiball - +1
Starting Tank Attack Multiball - +1
Collecting a Destruction Jackpot - +1
Enter a new City through City Select - +1
Collecting a City Combo - +1
Super Jackpot during Godzilla Multiball - +1
Starting Mechagodzilla Multiball - +1
Starting Saucer Attack Multiball - +2
Starting Jet Fighter Attack - +1
Winning Jet Fighter Attack - +1
27, 39, 51, etc. Jet Fighters defeated - +1
Starting Monster Rampage - +2
Lit Super Spinner - +1
Consecutive loops - +1 for 3 loops, +2 for 9?
Tail Whips - +2
3, 20, 30, 40, etc. Trains - +2
Collecting a Mystery Award - +1
Collecting 5 Secret Combos - +2

haha....NO. I said through the building.
https://pinside.com/pinball/forum/topic/stern-godzilla-official-owners-club/page/208#post-6917589

The jokes on me though. Knowing how to do it apparently isn't enough to actually make it happen. I have had several combinations of collecting enough power ups or Mecha SJP, but only twice both at the same time. And both times I boofed it. I think one of them I collected 5thPU at the same time as starting another battle so got stuck in that and drained out. Ugh...

For a long time I didn't realize that you only destroy a saucer when the blue "saucer attack" insert is lit. I also didn't realize that it was on a very short timer, so you might not see it before it turns off and you have start over with the hits. So you can wail on the bumper all day long and still not destroy any if you don't pay attention to that insert.

If the ball trips only the lower switch of the shooter lane, "saucer attack" is lit instantly. It can really only happen by accident, but it is more often than you would think. I make it a priority to hit the pop when this happens and I am able to collect that EB pretty much every game.

Agreed! I especially enjoy the mode music and sound effects. I see it so rarely, I haven't bother to figure out wtf to do.

Moving Terror of MG and Monster Zero down to Level 4 power-up is much appreciated. It does sting a little that you have to get up to Level 8 (!!) to play the one not chosen. Yikes!

Try manually shorting the board traces to ground without the membrane. I bet it works fine. I had all buttons eventually stop working on my IMDN, and it was 100% from the button side. I used conductive foil tape between the board and the membrane contacts and they work better than new. I had also bought some conductive ink in case the foil tape didn't work, but didn't need to try that. I have three recently built games, GZ/DP/JP and they all have some difficulty registering presses. I plan to foil tape them all. I'll take some pictures when I do.

Yep. Super simple.

Yeah I agree with this. Powerups build as you do "things". Just do regular "things" and the powerups will be there waiting. The small caveat to that is, if I have a clean shot at a loop, I will always try to get 3 in a row specifically for a powerup +1. This depends on how clean that loop shot is in the game you are playing. I find it more difficult trying to determine when it makes sense to jump out of city early and when to complete the four city goals. I also haven't quite figured out if there is a clear advantage to hold certain MBs for specific stacking.