There are two ways to get credits for poptropica: buy them, or earn them on the site.
Earning them on the site is quite simple, all you have to do is complete an island. Each island you complete earns you 100 credits, but the haunted house in the poptropica store can earn you only 50 credits.
If you complete all of the islands you earn an extra 100 credits.
You can also earn credits by filling your battle ranking bar. The higher the battle rank of the players you beat, the faster the bar fills.
Complete all the islands
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No. There is no way to trade credits on Poptropica. You can have more than one username, and earn more credits that way, but they cannot be transferred to other usernames.
I've found that Survival Mode (Co-op Multiplayer) is the fastest way to earn credits. Typically I earn 500 per game and if your partner is really good you can earn alot more.
Firefight Arcade is THE fastest way to earn credits, use it now before they take it off the setlists :)
Currently they can only be obtained by completing islands or by purchasing them at the Store.
There is no way besides winning them or buying them. Unless you can get someone else to play it for you. You can also earn credits for beating Earth Day or the Haunted House, which are mini-quests available in the Poptropica store.
With credits, the only free way that I know of is to beat the islands. Also, when there is a season special, like the Halloween one that is on right now, you can earn credits. for the advertisement things that are at all of the islands, you get awesome costumes.
Not any that are currently known (as of December, 2009, these are the only ways).
Until new islands come out, or games like Haunted House, there is no way at present to earn more credits. You can, however, begin a new, separate character and acquire credits for that character. Unfortunately, there is no way to transfer or combine credits among separate usernames.
that was some dumb persons idea of a joke there is no free poptropica credits in the clouds the only way to get credits is to finish a island,buy them or get membership
Credits can only be earned by completing islands or by purchasing them. There is no other way, legal or illegal, to get credits.
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