There is ALWAYS a 50 - 50 chance of a coin landing on heads or tails, unless it lands on its side, but then it wouldn't count and you'd have to flip over. Also, it doesn't matter which coin you use. The Vileplume, Chansey and Aerodactyl coin flipping results were just luck, or whatever you want to call it. I'm EXTREMELY sorry for saying this, but the article is useless.
 

[Editors Note: Sorry, UltraMaster64, but the cardboard coins ARE biased.  If you look at the edges, one edge has a rounded edge, and the other is sharp.  I have done testing myself, and the coins definitely seem biased towards heads.  Basically, they suck...]

 

UltraMaster64
 
Email me at kimvanib@caribsurf.com