A videogame that makes fun of videogames. You use various powers like wallhack, frame rate slow down, aim bot. You go through various worlds of generic videogame types. For example the Platformer world would have a lot of references to Sonic & Mario and would be played on a 2D grid. While the Shooter world would be played from the first person persepective and would have many inside jokes about doom and counterstrike.
That would be awesome and I would love to see serious parodies of other games. It's a shame no one has stepped up to make something like this after all these years, this whole industry needs more comedy games period. Your mention of the powers reminds me of my own idea for a game set inside of a bad game. You'd use all the flaws of the world, like bugs, invisible walls, crashes etc. against various enemies. It would be more of a joke game than a serious one.
My ideas:
I'd like to play a really open-ended Deus style game that takes place in current Iraq, or maybe a near future Iraq that has you playing as one of the new police officers who gets elected to a special investigation force whose goal is to specificly take on the insurgents and get to the bottom of their operation. What would be cool about your character is he would be an Iraqi who has experienced both sides of the world, so you will be obligated to your US allies and your own people. It's because of this at times you will be faced with many moral dilemas like having to engage friends and even family, dealing with hysterical mothers and trying to figure ways to only apprehend some enemies you believe aren't as bad as other. Depending on how you play, you could even find yourself uniting with certain groups against US forces. One mission your a hero serving both countries, the next your joined up with an enemy faction doing a raid on various holdings you believe to be abusing and withholding the innocent.
Saiyan game! I mean a seriously open-ended action rpg type of game that lets you travel all over the galaxy with all kinds of different Sagas that could occur at any time in the game. Basicly I want a game that lets me feel the same sense of excitement and adventure that Vegeta felt when he first landed on Namek. After that, I'd take the same engine and make a Matrix and Star Wars game with it.
Kung Fu MMO. There should be a game that's totally based off of 70's and 80's kung fu movies. Combat would be heavily action based, but there would be all kinds of classes or job combinations. Since almost everyone in the game would want to be a kung fu fighter, I'd just encourage the players to have dayjobs or occupations. Like student, begger, thug, fisherman, writer(special), etc. along with all kinds of high end classes you work and buy your way into like loanshark, school master, business owner, merchant etc. along with the special ones like the heaven and earth type dudes, assassins, noblemen, generals etc. The whole purpose of all this would just be a cool balancing, you can engage in all kinds of interesting non-fighter classes but still go out and whoop some ass. What would make this game really cool is an awesome video ratio effect that would really give the game world that grainy look the movies had. It would be optional though of course.