Mega Trogg

The Mega Trogg was an extradimensional behemoth that served as the main antagonist in the film, Gnome Alone.

Biology
The Mega Trogg was described as a gigantic purple monstrosity with glowing eyes with a rather blob-like appearance. It had been merged with all the other Troggs as they were morphed together into this massive creature.

The Mega Trogg appeared during the final battle shortly after when both Chloe and Liam along with the gnomes had destroyed the Trogg Dimension as it had already been completed enough to be brought to the presence on Earth.