which ep are these 2 shredder/krang pictures from?

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which ep are these 2 pictures from http://www.thetechnodrome.com/images/index.php?currDir=./Krang_and_Shredder_Together/Contributed&pageType=image&image=kns2.jpg and

http://www.thetechnodrome.com/images/index.php?currDir=./Krang_and_Shredder_Together/Contributed&pageType=image&image=kns3.jpg

I thought the technodrome was not in the city from Big blow out to (shredder triumphant, which I never saw but read the reviews)

and what is going on in these 2 pictures?

[ZariusTwo]

In all probability, that could be the Mini-Drome from "Planet of the Turtloids"

[KROW]

Oh, man!
Those pics look so familiar but I can't think of the right episode. Great! No you got ME going crazy over it!