Due to widespread complaints from parents with young children that the game was too hard, Monolith released an update that makes the game much easier. Extra lives are awarded per 500,000 points instead of the old million, and the baddies are total pushovers. But the most interesting change was that they included a whole new set of fan-designed levels.
A special edition came with Awe64 that loaded the game sounds and dialogs in to the sound-font bank.