Forum:Number 41: Bagooska vs. Flip Monsters

I have a question regarding Number 41: Bagooska. If I have this card face-up in Defense Position, is my opponent able to flip summon a face-down monster like Penguin Soldier and activate its flip effect or is it immediately changed to defense position before its effect is activated and thereby has its effect negated?

Thank you. Harpyie 1 (talk • contribs) 12:12, March 11, 2018 (UTC)