In Ninja Terminator, any time the Ninja Delivery Robot (a bootleg of Omega Supreme) showed up.
In Ninja In The Killing Fields, after defeating the evil Ninja, the good ninja finds a frog, tries to pick it up only for it to multiply over and over and over until the good ninja gives up. Why? Only Godfrey Ho knows.
A lot of people also enjoy Mike Abbot aka the "I WAS SO CLOSE TO BECOMING THE ULTIMATE NINJAAAAA!!!!!!!" dude.
Thanks to his Large Ham facial expressions, Stuart Smith is one of the favorite recurring performers.
Hilarious in Hindsight: In Ninja Terminator, a bootleg of Omega Supreme shows up. It's already bizarre as it is, but becomes even more so once you know that Omni Productions, the Hong Kong dubbing studio who did virtually all of the dubbing for Godfrey Ho, Tomas Tang and Joseph Lai's films includig these, also dubbed the equally So Bad, It's Good English Dub of Transformers Headmasters.