Arachnoid

The Arachnoid was a giant mechanical spider who appears in episode 2b. It is defeated when Lana overcomes her arachnophobia and becomes a spider herself.

It's scrapped plan is seen at the end in Doctor Shiny's lair, although "Volcayes" is not crossed out.

Other plans not crossed out include Krak-em, Teeth Fairies and Cyclopsior.