Astro20 Max stamp

Astro20 Max was a medium difficulty stamp in Club Penguin, only available to be obtained by members. It could be obtained by completing levels 1 through 20 of Astro Barrier without missing a shot. Missing a shot during an instruction (such as teaching the player about 1-ups, or blasters) did not count as missing a shot.
==History==
Available from	Available until
July 26, 2010 	March 30, 2017
==Gallery==
Astro20 max stamp book.png|As seen in a Stamp Book
==Names in other languages==
==See also==
*Astro5 Max stamp
*Astro10 Max stamp
*Astro30 Max stamp
*List of Stamps
==SWF==
Category:Astro Barrier Stamps
Category:Astro Barrier
Category:Medium Stamps
Category:Game Stamps
Category:2010
Category:Member Stamps