Greetings, Scratcher There's a glitch that let's you make sprites way bigger than they are supposed to be able to be; changing to a smaller costume, changing the size and then changing back to a bigger costume doesn't change the 'size' of the sprite. Using this I've made Scratch Cat 108'000% bigger! Use the arrow keys to move him around. The boundaries of the screen has also been altered by the glitch, so your x and y position can be much bigger/smaller than intended (like orders of magnitude bigger. ).
I made it bigger! Look at original for more information.