These are Kathrin Otoshi's Numbers. Click the 10 and it will bounce. The 9 will get surprised? The 8 will do some kind of jump. The 7 will bounce smoothly. The 6 will say, "NO!" The 5 will do the same thing. The 4 will slide. The 3 will do the same with 6. The 2 will hook up? The 1 will bob up and down.
