N- start normal mode. E- start expert mode W- move up A- move left D- move right S- move down SPACE- shoot kitty missile which will be shot in the direction of your mouse-pointer. Hover your mouse-pointer over the sword to display it's health.
A huge thanks to @basilisk2004 for most of this. I recoloured most of the stuff, added more health, making it possible, fixed the 'hold space' hack, added an OP sword slash expert-only attack, made it easier to move, made the opening animation better, added a VERY annoying 'meow' sound when firing a missile, and removed unnecessary 'join' blocks - you can just put "join: I,(space in the first join) username, etc... I put some SERIOUS late night coding into this, ESPECIALLY the sword slash ability, where the sword clones itself and launches the clone at the centre of the screen, closing both the clone and the real sword on the poor little cat. I also spent (practically) HOURS making the kitty paw effect, using some clever 'clone' and 'go to' scripts that are excellent for particles such as ripples and paws etc...