Forum:Pseudo-Flip Effect

So just wondering but how do these cards work?

I mean I know they'll work if they are Flip Summoned, but what if they are flipped from an attack? Would the effect of Snowman Eater, Fossil Dyna Pachycephalo, or Nightmare Penguin activate if it is flipped face-up from an attack?99.33.43.154 (talk) 17:50, December 1, 2012 (UTC)