100 like every island
you get 900 credits
For completing a regular Island, a player receives 100 Poptropica Credits for use in the Poptropica Store. For Haunted House (free in the store), the award is 50 credits.
you can't buy credits per 100, but if you beat an island, than you automatically get 100 credits
50
For Astro Knights Island in June 2009, Early Access was 500 credits.
From March to December 2009, credits were only available at 500 for USD $5. (Other prices may apply in other locales.) There is no indication this will change soon.
100 credit if you finish an island 75 for costume 250 for gold card 350 for your own room
Haunted House and Earth Day (free in the store), and Dr. Hare's Secret Lab (not very much for a cost of 250 credits).
He is beating mccain by 10 percent 10%
You don't. Other than the lantern and the footprint photo, there is nothing to do at the Himalayas. Later, when you have proved the existence of the other three cryptids (Nessie, Chupacabra and the Jersey Devil), Mews will send you to the Pacific Northwest to find Bigfoot, which is much the same creature as the Yeti.
For some few users, either Bigfoot or the Helicopter fail to move at the Pacific Northwest. This glitch was much more common when the island first came out. You can try rebooting Poptropica or playing another island until your browser cache is cleared out, then return to the Northwest.
You always get credits in halo reach until you reach inheritor, you only get banned if you get said credits illegally...