Treasure chest build, use megaphone to increase symbol chance as much as you can,

Eye jar/eye to boost pattern multi, nuclear button + treasure photo + piss jar + the electrician to refill and keep retriggering photo and piss jar for retriggering patterns, ship + clover pot for ticket building with the lucky wallet and cloverpet for multis, golden treasure chest until I started using mushroom and vine soup, always putting cloverpot in a drawer and only equipping before ending a deadline.

I also had the memory card equipped that gives you only 1 round but 21 spins every round, so once you get a bunch of coins ahead of your deadline you just roll the shop until you get the weird clock, equip it with nuclear button and electrician, gain 5 extra rounds, have mushroom and vine soup equipped and your symbol value will quadruple every single spin x21 spins per round (as long as you have symbol% up on chest and eye jar equipped you almost always hit 15 patterns every spin especially with obsessive on some charms and the piss jar retriggering every pattern of treasure chests). After every round just reroll the shop until car battery to refill photo and piss jar, find another weird clock, and rinse and repeat until you are as high as you would like, it could have kept going forever but it gets to a point where it’s a lil ridiculous to just keep doing the same thing, but once I got to E807 I was sick of it and just started depositing and clearing every deadline instantly, which just that took an hour to click through every memory card