If you live in the US, you can obtain OGPlanet Astro game cards at: 7Eleven, Walmart, Blockbuster, and Speedway. If you live in Canada, you can obtain them from Futureshop and Bestbuy. http://astrosforfree.blogspot.com/
OGPlanet was created in 2005.
If you are looking for free astros, I would reccomend visiting http://RumbleFighterHacks.com/AstroHack where you'll be able to get free astros for OGPlanet. I used it last week and it worked for me so I'd highly recommend it. Good luck!
If your talking about astro cards, yougo to "get astros" choose your choice of payment, if gamecard, enter code on back, answer some questions, and you can get astros( sounds complicated but its easier than you think). If its a coupon that you got from an OPG admin, than idk. I got a beta test prize for trying a new OPG game, Hero of Realms. Other than i asrtos, i really dont know.
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You must make an account on OGPlanet first.
blockbuster Answer Walmart, 7 eleven and also online at ultimategamecard.com...
Well first of all email ogplanet!
by doing surveys one OGPlanet simple :p it takes long :/
There isn't a special technique. Fend 4 yurself
You have to click 10 of the cards exactly once each to flip them all over :all four cards in the 2nd rowthe two middle cards in the 3rd rowall four cards in the 4th row
The aliens are in the witch mountain building. You get them by finding all three colored key cards.