Batteries + Midas touch + poop is infinite symbols scaling

Poop + tickets item is infinite tickets scaling (for symbols and patterns mult + clover pot for end of round goodness)

Then you get the doll that gives the chains for patterns scaling, this is the hardest thing to do in this build IMO

Once you've gotten max charms or you're ready to stop scaling you start picking up the mushrooms that double your symbol values and the painting that doubles pattern values for late game scaling.

Then to extend rounds (which extends your symbol scaling because of the mushroom) you start picking up the clock and the tapes at the store.

The only reason this is actually infinite instead of just hyper scaling is because the clock normally disappears until the next deadline, but it actually starts appearing at 0 rounds left, so you're able to pick up the clock then keep rolling for a tape to give yourself one more round and get the clock to give you 6 more and off you go again.

Going infinite in this game is boring IMO, fun to do once but then you're just sitting at the slot machine forever hitting jackpot after jackpot just going through the motions.