A few years ago I fired up a C64 emulator and played through "Gruds In Space" again. I was able to recall most of it, did use a walkthrough once or twice, but what struck me was how short the game was. Maybe 20-30 minutes.
As a kid I remember spending hours on it. Maybe I was a slow kid ;)
The GameCube on the other hand. That controller is a bit small but it is so comfortable!
It took some serious willpower not to settle into a "Starfox Adventures" session.