Didn't see these listed on this page, but when we played on the genesis way back when we had the following bugs;
First, if there was a penalty shot upcoming for your team, after the whistle you could put the puck in the net and it would count.
Second, was the "off-side one-timer". A pass to a player already over the blueline if one-timed would not count as offside and would quite often score.
Don't know if anyone else saw these bugs.