Try deleting the Scratch Cat by clicking on him. This literally just happened to me (pressing duplicate by mistake) and I felt like recreating it. Usually what happens is I delete a block by mistake instead of duplicating it, but this was easier to do and much less annoying.
I feel a bit goofy sharing this simple project with nearly 900 followers, but hey, I've never done anything super special with getting followers, so don't expect special treatment from me. ;) I suppose I should say thanks though for all the followers I've gotten... I'm rather surprised to have made it this far with just a few front pages and a large jumble of simulations and such. ( ͡⎚ ͜ʖ ͡⎚) On a deeper note, I'm starting to wrap up Scratch since I'm graduating high school soon. I'm not sure how much I'll use it over the summer (depending on the job I get and whether I still feel like it), but I do hope to finish Jello Jumper and get at least 1k followers before I graduate. We'll see.