Next to some people's runs it says "Emulator". I just want to know what it means by this.

It means they use a flash player to run the game to reduce lag. It may provide little to no difference for some depending on your computer.

thanks coal human

Stand alone flash player

Hey I just have a quick question, How do I use this stand alone flash player. I'm sorry I have no idea.

PurpleBox, go to resources and download the standalone flash player as well as Cat Ninja (and the practice version if you want). You can open them in the standalone flash player and play