On a school field trip to the Nautral History Museum, Bunnicula drains an ancient plant and his 'lizard brain' starts to take over.

Bunnicula absorbs some catnip and becomes an evil cat with the urge of destroying everything. It's up to Chester and the other cats to turn Bunnicula back to normal.

Bunnicula must travel into the world of text messaging to save an embarrassing message that Mina sent to Scott.

Bunnicula (with Lugosi’s special blend of beans used as a temporary sunblock) has an adventure at the beachside.

Patches explains his origins, and how he first encountered Bunnicula.

Bunnicula sucks a vegetable that had been burned by an iron pot, causing his body to become metallic (apart from that it can attract metal objects like a magnet).

Bunnicula accidentally erases Scott's memory after the latter finds out about Bunnicula's secret, but also becomes rather intelligent. Chester and Harold use this to take advantage of Scott and make him cater to their every whim, but this also makes Mina miss the old Scott.