IF YOU HAVE SOME ZIM DVDS, PLEASE SEARCH FOR B.G.!
According to wiki:"Bloody GIR"
Bloody GIR is an Easter Egg visible in several episodes of the television series Invader Zim. Bloody GIR was born when Nickelodeon refused to allow a scene involving GIR covered with blood, Nickelodeon productions thought it would have something to do with the influence on kids. The crew inserted the forbidden image into single frames in a few episodes. Post production supervisor Jason Stiff has confirmed that the image appears in "Bad, Bad Rubber Piggy." [1] The existence of bloody GIR has been confirmed by director Steve Ressel in interviews. The frames were reportedly scattered throughout the episodes following "Bad, Bad Rubber Piggy" by Ressel and Chris Graham. Bloody GIR can be seen the most clearly during the opening in "Mortos Der Soulstealer," when the purple pipe from Zim's house gets very close to your TV screen. In fact, it is almost in plain sight.
"The bloody GIR was the single frame drawing that Chris Grahams drew and I was putting it into the show at random points hidden within things. It is very hard to make out....and I am not telling where or when those frames are (you have to be a master to see Bloody GIR, even with a frame-by-frame VCR). If anyone finds it...let me know. He is in several places through the last 14 shows. We tried to get him put into "GIR's Rubber Piggy" when the last pig goes through the portal: that was the first one and I don't think it stayed..you have to check...if it is there it is faint." -Steve Ressel
According to Ressel, Nickelodeon never discovered a Bloody GIR before the episode aired.
I love the bloody gir easter egg!
He might scare some people