I think you guys are talking about Enviro-Bear 2000. Which had a lot more work on it before release, it was also an entrant and winner of a TIGSource month long competition. [0]
As for time constrained game challenges, the Klik of the Month Klub[1] gives 2 hours and 0 Hour Jam[2] gives participants just 1.
I did KotM a while back and was pretty surprised at how much I managed to get done. [3]
Hilarious! How does one come up with ideas like this? There must have been substances involved...