i emailed Johan Bisse Mattsson, one of the co-creators of BB, a few days ago with some questions.
straight from the horses mouth folks:
"me as a twelve year old while my brother was 14 at the time. He did the programming while I did most of the graphics, and we got help from friends making all the 100 levels."
"We made Billy Bouncer for a computer games programming festival that the Swedish PC Gamer magazine had back in 1998."
"Sadly we haven’t done any more “major” computer games since then..."
"But time to time we think/dream of making another game. We’ve got plenty of ideas for them..."
and the answer to the most important of all my questions:
"PS. Regarding Crunchy the Fox...
... that is a closely held secret."