The 'crazy cat' sound effect (performed by Shane Dundas) is quite often heard in their performances as the Umbilical Brothers, particularly in Speedmouse where the 'crazy cat' was a frequent 'visitor' both to the stage show and in the actors' commentary.
In the final episode "Mini Golf" the scene where Shane and David think the mini golf ball is a basketball try to dribble it in the basketball room. David yells "This is your home! It's your home! What's wrong? You too good for your home?!" This is a reference to the Adam Sandler film Happy Gilmore (1996) in which the title character yells "Why don't you just go home! That's your home! Are you too good for your home?!" also at a golf ball.