Forum:Target Face-up-down monster

I used to play yu-gi-oh game in the computer. I really confuse how the effect of the 2 monster is difference. the case is so,...

I can flip [man-eater bug] and designate any monster to be destroy even if it is face-down or face-up position. But when I tribute [Exiled Force] to destroy 1 monster of the field (in the text of man eater and Exiled force are the same), But it allow me to choose only face-up monster I cannot select any face-down monster as a target of Exiled force's effect. Why ? Please give me the explaination and other example that will be grateful 58.9.161.169 10:53, 7 July 2009 (UTC)Boom