Good sir, I pose to you that none of these are particularly "bad ideas in gaming". They are delightfully silly encounters that would be fun to toss into a less-than-serious campaign.
Is there something wrong with me if both of these ideas sound good (if very difficult to pull off)? An RPG version of Rez also sounds quite intriguing.
How about "Bratz: The Corrupting" or "Jon and Kate Plus Eight Million the MMORPG"?