Key cards are used for high-tech locks, because they can re-programmed and reused. On Poptropica, key cards were used in the ad-games for Race to Witch Mountain and Monsters Incand most recently for the purchasable mini-game/costume called "Dr. Hare's Secret Lab".
On Counterfeit Island, a recovered key card is used to open the stolen artwork trove of the Black Widow.
put the key card in the hole at the eye scan and key card lock is
There is no key card in skullduggery island.
the key card the thief you chase on scooters
its the key code to enter the black widows hq
Actually, there is no key-card. You have to use the bolt cutters from Joe Puddy's apartment to open up the gate.
you take it and bring it back to spy island and give it to the spy in the trash.
After you manage to jump to the top, avoiding her bodyguards, use it on the door to get out.
go underground and there is a gate use it over there
After you chase the guy with the scar, you will see that he dropped his key card. Pick it up. This is on Counterfeit Island.
there no key for poptropica
to get an access card on poptropica you must buy it with poptropica credits in the poptropica store
Get the card from the Poptropica store, and it will be in your Store items. Go left through the graveyard to the house, and you will startle a small bat that has a key. Climb to the roof to grab the key from him, and the basement door (left) is open.