1st Glitch So first go left, then down between houses then left. However you need to be at highiest possible position, otherwise you're screwed. So you need to corner boost - have Adol's sprite slightly below bottom line of house and press left Now you need to align yourself horizontally, I use bottom row of bricks on house. I want Adol to be 3,5-4,5 bricks away from tree(first brick is only half-visible), then go to shop, buy mirror, then try to buy it 2 more times and exit. If done correctly(and got lucky, this glitch is very unreliable) you should get level 10(and possibly get warped to mines)

New strat(no runs finished with it) After doing first glitch if you didn't get mine warp, you need to re-allign yourself, head right and up to where you started(you need to only slightly scroll camera up and quite a bit right), then corner boost again, but enter pawn shop right away. Try buying mirror twice and exit. You should get a lot of money. with that buy wing in pawn shop and weapon+shield+armor(cheapest gear is fastest to buy, but best armor can help in final dungeon) If you got mines warp, go into mines and exit(this fixes camera, which refuses to scroll down otherwise) and then go back to town and follow steps from in previous paragraph.

Old Strat(current WR) Here you want mines warp from first glitch(if didn't get, just walk there). Kill 6 slugs(you're level 10, but have no gear, so be careful, they pack quite a punch), then pick Golden Vase by lake. Sell Vase in Pawn shop, buy wing and cheapest sword+shield+armor(only option you can afford)