You can use a pizza + cheese + cheese (You can find pizza and cheese in the store.)

Make mochi with 3 rice

Make Michigan with 3 rice

You click on them and click the option "yes".

I tried to go to the town without Internet and there weren't any quests, when I do play it with Internet there are quests there.

Poppy Isobel it can be used for quests

You can get a poison mushroom from the cave as well.

To do the spy of love quest you have to talk to the Tan Mouse and give him 6 quest coins so you can talk to the guy. In the happy poop quest you have to throw out poop in the trash can and there's a chance you might get a happy poo.

You have to get a ticket to go to the cave that is where you will mine an iron ingot.

Buy a weight loss potion in the shop