Heya, that's correct, there are some hidden quests that can be completed once. I haven't ported the quest system to the new engine yet. I don't remember by heart what they were exactly. I think one user decompiled the old game and posted a list on the forum. (I really need to implement a forum search when I get the time!)
A few more I remember on top of those you already guessed correctly.
- If you own the bowling ball, there's a hidden quest to bowl a perfect game
- It is worth it to watch the entire credits :-)
Cheers
Andy
