A couple of weeks ago I was on RPG-Geek and spotted that a game designer had uploaded his beta/apha version of his RPG. I snagged it and had a read through.
I was immediately intrigued. It's not your usual or rather, it's not a traditional Role Playing Game, and neither is it a pure story telling game. It's a hybrid of sorts.
The background is really thin, just a few paragraphs really. The idea if the game is that all of the players as well as the games master will build the background through play.
The game is called "Danger Patrol" and that name nicely links in with the Rocket Cars and Evil Scientist theme. It's posted for free on it's own page at RPGGeek.
The game mechanics are very interesting, there is no board as such, but rather a series of 3x5 cards where each important location is noted. Each character also has a card and these are placed on the table in one of the locations. As the Games Master and the players mention things as part of the narrative they can be added to a card and then placed on the table.
The narrative is also pretty imaginative. As a Player Character is carrying out an action each other player is able to add to the story provided it increases the danger level.
So in summary I've been very impressed with this game. It keeps all of the players involved even when the story does not effect their character and it's tongue in cheek sci fi background is very appealing. The rules PDF is quite short so definitely worth a quick read.