1) Do the lightning-hammers on the walls have any gameplay effects? In the editor they're listed in the "Basic" section, not as Decor, but I haven't noticed whether they do anything special.
2) The Electric Shocktopus is shown generating a powerful electric field, so strong that there's visible lightning and that wooden crates and portraits he touches are instantly destroyed on collision, and we see the Magnetic Yeti run away from him in the opening scene. I assume this is an ability similar to but stronger than the power of an electric eel or ray. Hypothetically, if the Shocktopus were to touch someone (such as the Yeti, Tux, or Italian plumbers) while charged, is it safe to assume they'd be toast?