When you find yourself trying to remember a show (or any works) that's on the tip of your tongue but just out of reach, come here - the collective brain of the TVTropes community can probably help. Post all the details you can remember (examples help). If you're looking for a trope, head over to Trope Finder. Have general questions about tropes? Visit Ask The Tropers!
GordonWay2
Since: Jun, 2012
ElisiaBee
Since: Nov, 2016
ElisiaBee
Since: Nov, 2016

So in this animated movie (it might have been direct to video), there's two kids- a brother and sister, I think. They end up traveling either back in time or to an alternate dimension (I can't remember which) where they encounter a yellow creature and end up taking him back to their present time/dimension. When they're there, a scientist captures and experiments on him. The kids end up saving him, but that's just about all I can remember. I think that the creature had suction cup feet? I've looked everywhere, but I can't find anything.