Quoted from mof:If my crowd-sourced info is correct: https://pinside.com/pinball/forum/topic/1-or-2-pops
No modern designer has had the gumption to try 1 or 2 pops since 1998.
Yet there are many historical games with 0 pops (Grand Lizard), 1 pop (Black Knight), or 2 pops (Defender) that are GRRREAT.
-mof
Stern Star Wars has 2 pops.