Having discovered from a hypnotised Sonic that Doctor Robotnik had shrunk to nothing in the Floating Island's Emerald Chamber, Grimer deduced that Robotnik was not actually gone and enlisted Nack to create a shrinking device. The villains visited the island whilst already small, returning to full size to conduct a search for Robotnik. Before they could be captured by Sonic, Grimer and Nack activated their devices and began the journey to Shanazar. As he faded away, Nack lost his backpack when attacked Sonic, gifting the hedgehog a spare belt.