Didn't have any issues with the controls, after i got over the surprise. Quit at level 7 after a walk through showed that the way to escape the box what basically exploit what in other games would be a glitch. If the only way to win is to cheat, I don't want to play
had an extremely buggy experience, controls stopped responding at the pong level. "Fixed" it by reloading the level, but then kept happening every level after that.
Yeah, '0' doesn't help, but I've devolved to just entering sequential numbers into the last puzzle having exhausted all trick and logical solutions to the question. Even if there's no point to it, it might be psychologically helpful to allow stepping back from the entry.
 "The Big Pig Game"){kind=icon}
 "Psychout"){kind=icon}
 "Where Are You?"){kind=icon}