Alright, you need to know a few things about the island if you don't already:
1) You can't bring anything to the island. Kapp'n takes your stuff when you leave and returns it when you get back.
2) You can't carry anything back from the island. Instead, there is a box inside the hut there where you can store 40 items. You can retrieve them later from a similar box on the dock.
3) There is a gyroid on the island named Lloid who will loan you any tool for free.
4) You need to go to the island after 7 PM; that's when the beetles start appearing.
First, you borrow a shovel and axe and remove all the trees, bushes, and flowers from the island except the Palm trees on the East and West sides (you should remove the Palm trees on the south side). Keep in mind that you can always return the island to its previous state later, without too much effort. With all of that stuff gone, only various beetles, hermit crabs, wharf roaches, and long locusts will spawn. Borrow the net and catch beetles until you fill up the storage box. If you're decent at it, it should only take half an hour or so. Return to the island and sell everything; you should net somewhere in the range of 300-400k.
Beetle catching tips:
There is a spawn limit, so you'll need to scare away the unwanted bugs. The beetles are easily startled, so it's best if you approach directly from the south. Hold A to ready the net, and take just a few steps at a time. I found that the 3D helps me determine when I'm close enough. If the skies are clear, the trees should cast shadows on the ground. You know you're close enough when there's just a little bit of space between your shadow and the tree's.
After you've built the campground: Talk to the campers when you have at least 5000 bells and sellable stuff, and they'll suggest a "buy your stuff game" eventually. Each villager type has their own version and each has 4 outcomes: 1.5x the original price, 1x the OP, 1/8x the OP up to 999, and 1/16x the OP up to 500. All the other types are luck-based games, but only the Lazy type has a sure-fire way to get the best two outcomes.
When they ask you to guess a fruit that's red, always pick cherry. If you're right that's 1.5x. If you're wrong, pick peach and that's 1x. If the fruit is not red, always pick orange. If you're wrong, pick banana. A royal crown is worth 1.2 mil, so you'll always get 1.2-1.4 mil from them.
So, from now on if you see a Lazy camper, think of him as moneybags. Sell him your beetles, sharks, crowns, whatever! He'll make you filthy rich, guaranteed.
SilverClock posted... I do have some patterns I made back in the day if anyone is interested.
I've got Aqua, Roxas, and Kairi from Kingdom Hearts Neku from The World Ends With You The MC from Persona 3 and 4 Lloyd from Tales of Symphonia and Ruby from RWBY
