Are you sure it is 100% Saunders? Recall that Norm touched up others' work so in some cases he did nothing but try to lend 3D rendering to otherwise average work. We used to have debates on whether Norm just touching a piece made it a "Saunders" piece. For me it became easy at that point, lower grade work like Spic N Span is lower grade work, end of story. I stopped getting hung up on whether Saunders blew his nose on a piece to make it a Saunders piece.
Yes, I'm sure. Looking at the brush strokes and the way the person and the house is constructed through paint it's clearly his work. The house and man are loose because they are so tiny and because they are all about action. The guy is much like the woman on Bash.
Here are the pieces I think are NOT Saunders (with a few half and half exceptions). I left off a tiny few like Bleech because who really knows? With no characters it's tougher but even some of them you can see the packaging does not have the type of linework Saunders normally does. I think there are some can lids he did not do on pieces where he clearly did the rest of the work as well.
Sugarmess, Ultra Blight, Gloom, 8-Lives, No-Tips, 1A, Quake N Ache, Taster's Choke, Light N Dizzy, Big Baddy, Plopsikle, Achoo, Hungry Jerk (hockey pucks), Pounds, Mold Rush, Piwi Blecch, Sugar Daffy, Fruit of the Tomb (painted everything EXCEPT the mummy), Blisterine, Supr Cigar Crisp, Peter Pain, Baby Runt, Snarlamint (may have painted the cig blood tips. If not then a decent copy job by someone else), Cut Rong, Whatmans, Jerkens, Bit-O-Money (Painted just the money bag area), Ditch Boy, Bar Kist, Sneer, Bum Bums, Big Muc, Medi-Quak, Hag N Hag, Caged, Big Banana, Leek, Soggy Babies, Oh Hairy, Blast Blue Ribbon, Hurtz Ketchup, Mex-Pax, Choke Up, Paid Killers (did not paint the gun at top. Not 100% about the bug), Jerkyfruits, Unpopular Mechanics, Easy Cuss-Words, Nooseweek, Crocked (I believe he did not paint stuff at top of magazine) National Spittoon, Rotsa Root
Last two series I would like to see 5x7 images but I'm suspicious of: Krummies, Cracked Lighter (the bug only), Bum & Mabel and Ultra Sheep. These may all be just styles to mimic something on the package or he just went minimal for effect. Regardless, they are all pretty weak work if they are his but I'm leaning towards them all being his.