A few years ago a friend and I wanted to increase our productivity on our personal projects. We liked the idea of game jams. There some really good ones around now, but at the time needed to keep it a little more laid back and flexible with our work schedule.
The first and sadly only game to come out of this was a very small, very short climbing game. The rules were simple. We had one week to make a game that used only 1 button. This made us really change our focus from our normal comfort zones of game design. In the game the climber would spin a climbing hook around in a circle and when the player hit the space bar he would throw it in the direction it was currently facing. The goal was to hit a floating platform and swing up to it. Once on the platform it began to crumble away so you had to keep moving. The higher you got the faster the platforms would crumble. I made the game with Game Maker, I think it was like version 5 or 6 at the time. All in all the game was some pretty fun. I still enjoy the idea and might revisit it some time down the road. I have no idea where the game files are anymore so I would have to start from scratch, but I did have these screen shots sitting on my hard drive and thought it would be fun to share them.