Yeah I noticed there wasn't nearly enough sound effects for game too, so I'm for sure gonna add more if I do update the game.
The glitch with the knight and the two people was noticed as soon as I finished designing the mechanic character. I spent a good 2-3 ish hours trying to find a fix but couldn't find anything. Eventually I just had to move onto other parts of the game so I could finish, so I just ended up designing every level in a way where you would never need to have two people on top of the knight at the same time. It's probably one of the worst bugs I have in the game, so I'll fix it if I update the game, alongside that other bug you mentioned.
I also like that idea of just adding corny and bad jokes throughout the game lol, and thanks for the feedback!