That would be the Haunted House mini-island. You can get this free from the store; it's one of the golden cards and will cost you no credits. Ask if you need any help with this island, when completed it earns you 50 credits; but it's tricky! (:
No. Bat wingisland is
First, get on top of the house. Second, wait for the bat to hover around you. Third, jump at the bat and retrieve the key.
To get the bat's key, get on higher ground then jump on top of it. Since it tries to escape into the air it meets you head on and you get the key.
No, it doesn't. You just have to get the key from it.
If your talking about Counterfeit Island then you get the key and go back to the museum on Counterfeit Island
You get the key from the bat, then there will be a back entrance, then you use the key there.
The easiest way to get the key is to go on top of the house, wait for the bat to hover around you, and then jump.
You must have a membership.
There is no way to have a bat follow you on any island. This may be an idea for the costumes at the Store.
There is no key card in skullduggery island.
Early Poptropica.
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