Invader Zim Lost Episode: "GIR's Rage!"

Today I got a DVD of all Invader Zim episodes at a garage sale, cool right? well you're wrong, they seemed generous to give me the disc, but they had that look like they were relieved of getting rid of it, does anyone else find that strange? anyway, I went back to my house, I watched all the episodes, but then I saw another episode, must be an unfinished episode because in the intro there was no music, I thought, however there was audio in the episode itself, GIR was eating a taco as usual, but zim snatched the taco and shouted at GIR, he said to never bring smelly human food in the base EVER. I thought GIR would ignore him as usual, but I was wrong about that too, GIR's eyes turned red and evil music was playing, and GIR busted open the front door and walked out WITHOUT his disguise. GIR went to Dib's house, as usual Dib wanted to manipulate GIR but he was standing still, as if he was ignoring him, GIR came closer to the screen and it cut to dib terrified. GIR was tearing out dibs organs and put them in a taco shell.
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GIR went over to professor membranes lab and knocked over every machine and test tube causing a fire, the fire was photo-realistic, professor membrane shouted "ITS A DISASTER! NO! NOOO!" like he really meant it, and not in a comedic way, GIR smashed professor membrane against a wall knocking him out, GIR ripped out his liver and also stuffed it in the taco shell, he looked upstairs, I knew who he was gonna kill next. GIR flew over to Gaz's room, Gaz, obviously was NOT glad to see him, but she had more of a terrified expression, GIR's hand turned into a buzz saw and started to slash at Gaz, Gaz dodged as much as she could, but when she was trying to get out of her room she tripped, GIR dissected Gaz and sliced up her heart an put the pieces in the taco shell
GIR went back to Zim's house, Zim, walked backward in fright, GIR was floating over, his hand turned into a saw and GIR chased Zim around the base, Zim tripped then got up, he ran out of his base with his disguise being chase by GIR who still has no disguise, Zim was cornered by houses, GIR chopped off zim's legs off and zim was dragged toward GIR, Zim's body hit GIR, who became blood stained, GIR chopped Zim up and put his pieces in the taco shell, which became a taco with legs arms and body haed in it, GIR started to eat the taco and he walked back to the base, I haven't looked at Invader Zim the same way again and I watched it again...