It's pretty obvious that the cameras on the Nintendo DSi are going to be used for any number of kids games. Take pictures of you and your friends, put those pics on drawings you've made or in an already-released game — the easy uses for the new camera on our favorite Nintendo portable game system are probably nothing to get too excited about. That is, until you see what Japan is getting in the form of downloadable content next week [via Boing Boing]:

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Hidden 3D Image: There It Is! is simple-looking kids game but the head-tracking it uses is truly a sight to behold. Even arcades and current-gen home systems have yet to really utilize this quasi-3D effect (not counting what this guy has done). The implications for pornography alone is staggering. Just saying…

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