How do you cheat cubefield on learn 4 good?

There are many different cheats in cubefield. A variety of them consists of a series of buttons.

One is: press repeatedly space and the right button to enter place out of cubefields boundaries and there will be a blue sea. There just enjoy and get infinity points!

One more is: As soon as you start, press just SPACE at the nearing of the end of that particular level. (e.g black and yellow level or red and yellow).