Is MazeFinger unstable?

I recently installed MazeFinger1.1 in my first generation iPod touch. When I first tried to play it, I had some music playing -- the sound effects of MazeFinger just kicked in, and I resumed playing. Soon I noticed that the touch screen was not responsive at all, losing track of where my finger was. When I quitted (inspired by frustration, I just pressed the home button). What's worse: I noticed that, a couple of hours later, my battery was drained and the touch was very warm, as if it were still playing MazeFinger. Now THAT'S an addictive game, isn't it? :P Also, I noticed that my iPod had no more sound: the earphones got no signal, not even white noise. The music application indicated that my tracks were still playing, but no sound came out.
After a WTF?!-moment, I restarted the touch and tried again: my tunes were safe, thank God. But when I tried to play Maze Finger again... alas! The same problem ocurred (and this time, I paused my music before getting into the game).
So... is this a common issue or am I just a jinxed person? Any updates to make MazeFinger's sounds behave well and be nice to my music?
Thanks in advance! :)