There are several ways including:
Sell everything in your town-plants and animals
Sell everything in you house
Wait until summer holidays and there are rare bugs
Sell rare,special items such as acorn,snow,spooky and Jingle
Put some money in the bank account and time travel to the year 2099 and you earn interest.
For other tips visit this site
http://www.chaptercheats.com/cheats/wii/28138/Animal-Crossing-Lets-Go-To-The-City-Cheats.htm
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In December you have a acorn festivle. You can find a lot around trees there.
sell fish, bugs, shells and fruit
You can sell fruit off of trees, fossils and shells on/in the ground, and sometimes when you shake an empty tree, 100 bells falls out, but other time you get nothing or stung by a bee.
They run really fast and catch an animal.
Your probably waiting to long to reel them in. (when the bobber goes under,tounch the screen to reel it in) but somtimes the fish are really fast and let go quick :) ~animalcrossingwiz:)
they come out from July - august and they are really hard to catch because if you run up to it it will fly away really fast, also if you swing your net at it and you miss then it will fly away really fast, once it flys away it is hard to find again, and if you can't find it they are so rare that you probably won't see another one for a coule of days.
Sell cherries, or catch fish. Gyroids sell for a very high price too.
it runs really fast and plus its a carnivore and a really good camouflaged animal.
Sorry, no... Unless you want to use a emulator, but that is not official or anything and needs a fast computer
you are running to fast!!!!! if you have in =surance you can get 100 bells for every time you fall down or get stung by bees...
It will slowly fade, and if u turn it to winter time, ur tan will go away FaSt!!!