So, this is what I’m calling a one day project. Pretty much it’s just an asset project for me, but it could be shaders or a control system. I’m just wanting to see what people can do in around 1 day. So, you’ve got a day from reading this to make something great. Here’s where I’m at with just over an hour, and I’ll be working on it the rest of the day tomorrow if I don’t get snagged by family.
http://calibermengsk.com/games/unity/1dp0001/1dp0001.html
So, let me see what you’ve got! Post your updates here, so we don’t have a bagillion posts about one day projects. O-o I think this forum should be the right one. I don’t see why it should go in the showcase.
I have done this in 3 hours 
This was put together in two days.
http://rouheegames.com/neasteatime/neasteatime.html
Graphics, gamelogic and soundeffects were made in two days. Game font is from dafont.com and music was bought from audiobank.fm.
I got 1 the first time, and 5 the second time after I noticed you could aim with the arrow keys…
You need to add that help screen to know what to do.
Looks a lot like Red Remover. 
Another hour or so done with mine.
sorry about that. I never make any help for protos.
I remember now one project that was made in a day. Its not finished game, but still kind of fun, for to be just a test.
http://rouheegames.com/airracer/
This was put together in one day. Only mode that works is practice. Plane model and engine sound effect was bought.
Don’t comment the controls, because they are ment to be very arcade, so that little kids could fly it too. (Plane can actually stop in the air
)
Nice works everyone, I really am no match for you 
I started something the last sunday (2010/08/15), and somehow achieved it (the core program, the gameplay, and the menus took me 1.5 days to finish, and the polish took me 1 day. I had troubles with GUI, it was the first time I use it seriously. I wasted time on trying to write a nice code but it was worthless.
So … Unity Web Player - color_mind
(10250 is my highest score ;))
By the way, this is my first “serious” projet (menu, game rules, sounds) that I made myself (excluding the tutorials, so). Champagne 