What are the best ways to make money?

Three of the most common ways to generate money in Undertale involve the Tem Shop. If you didn't find the Temmie Village yet, this video will help you.

• The first way is to buy Temmie Flakes for 1G directly to Tem. You can then sell those back for 2G.
• The second way is to use Dog Residues. This object can be obtained in the legendary artifact puzzle. When you use it, it fills your inventory with Dog Residue. You can then sell those in the Tem Shop for a price varying between 1 and 4G. Just keep in mind to always keep one in your inventory, so you can use it again to fill your inventory and sell those again.
• The last way involves Cloudy Glasses. Go to Gerson's shop, buy as much as you can for 30G each, then go back to the Tem Shop. You can then sell each one of those for at least 50G, so you have a 20G benefit for each Cloudy Glasses you sell.

Whatever is the strategy you choose, always make sure to empty your inventory to have enough place to buy all the items to sell (or in order to fill it entirely with Dog Residues). You will have to repeat the process a certain amount of time depending on the strategy you chose, but it will ultimately lead you to the amount of money you need.

Just because no one mentioned it, you could feasibly take the ferry near Waterfall. While the ferryman will say "3 gold for the ferry" he will pay you 3 gold for the pleasure of having you step on his face. You seem to be able to do that infinitely.

I've always just used Napstablook's snail race.. 20g profit every time your snail loses by just a little. You just encourage your snail, wait for the little exclamation mark to disappear, then encourage him again for a total of seven encouragements. Then, if he's going to win, encourage him one more time because he can't move while you're pressing the button. It doesn't take very long, and I prefer it to walking all over for the glasses. I also don't know if Blookie's always out running the race though, I always just play it a bunch right when I find it.

(I know this hasn't been posted to in a while, but I figure if I'm looking it up, someone else probably is too.)

You have to use Dog Residue and sell the Dog Residues it generates, then use it again and sell again until you get 9999g. You can only sell to Tem Shop.

What they're not telling you is that there's a box right outside the store with the glasses AND a box outside temmie. The box holds 10 items. Empty it, buy 8 glasses, shove them in the box, buy 8 more, shove two of them in the box, buy two more, sell all 18 for 20 profit a piece. That's 360 gold every time. That's the equivalent of selling 450 temmie flakes for 2 gold each.