KAOS lowers the tarantula through a brass door panel in the front door. However, no such panel is visible in any other scene.
KAOS attempts to kill Max, 99, and the King by releasing a tarantula in the apartment, but it fails to kill them. KAOS should have expected this, as no species of tarantula is dangerous to humans.
The Chief addresses King Charles as "Royal Highness", a style appropriate to princes from royal dynasties. Kings are properly addressed as "Majesty", as 99 and others correctly do.
When Max gets the Broomstick out of the closet and hands it to Chief the broomstick is already broken and they are just holding it together. Chief then 'breaks' it over his knee below camera view.