The instructions are in the project. Try to do what the instructions tell you to do so you can score more points. To skip a game, press space (if you must -_-). Try not to press the space bar too often or too many times (even if your space bar on your computer doesn't work); the project WILL glitch for sure.
I am really bad at all the games, so I changed it. And now you always get a really good score (really really really good score). Plus I didn't have to do all the work.