Chapter 1 (when green flag clicked) Just watch (it's an animation), and once it's done you go on to the next chapter. Chapter 2 Left/Right/Up/W/A/D/Space to move and don't touch red! After you complete all 4 levels, you go on to the next chapter. Chapter 3 Use your mouse to block the cats, if you catch 50, you go on to the next chapter. If you miss one, you start over. Be careful though, because there are many! Chapter 4 Put the link in your address bar (the bar where you can put links in)
@ScratchCat