Watched the Twitch stream. Rules look better than Mando hit the razor crest- still think the Pro is bare- Premium playfield mechs change the game play significantly I’d imagine
Speaking as a TNA owner, pins aren't all about rules...
Personally, if I'd come up with the 'levelling-up' idea, I'd have got the Pathfinder or D&D licences and gone full in, e.g.
The whole 'levelling up' idea comes from Dungeons & Dragons, JPRGs and other fantasy derivatives, and everyone is familiar with those because they're part of popular culture. Really simple rules - you complete quests/modes to get weapons and gain experience to level-up abilities, which save onto Insider Connected so you can continue your quest across multiple machines
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The game gets easier with multiple level ups until you can get through to the final wizard mode at your level of play, e.g. you grind for extra balls, multi-balls and to make fewer shots.
Eventually, if you're a rubbish player, you have so many 'extra ball potions' and weapons that you can get through to the final wizard mode with three balls, even if you're a toddler who hits both flipper buttons at the same time (but you'd have to play for ages to get that many level ups). I'd go for a fun, nostalgic 80s look for the whole thing and spin off the cheesy pinball fantasy art from that era.
Stern, if you want to steal this idea... You're welcome.