Riddle School Unplayable...
Looks like a great game! The keyboard restart thing was really frustrating, though; seems like anything that calls the focus out of the play window triggers it. I got an IM; the game restarted. I had to alt-tab to another window; the game restarted. I moved the mouse out of the window; the game restarted. That's annoying, and unless I can find time to play this when I'm doing absolutely nothing else, it's not gonna happen.
The graphics seemed great, though, from what I was able to get to, and the playing style -- again, from what I could see -- seemed smooth. I hope you'll fix that bug so I can try playing this again!