The audio definitely shouldn't be challenging to understand. I am new to using the speak text in construct, I have heard other comments about it spelling out letters rather than saying the word. I am still learning things.
Basically, you take turns to press a key from a to z. If a green key is pressed it turns blue and if it is pressed again when it's blue it turns red (this is a trap) and if it's pressed when it's red you are eliminated.
At the beginning some keys will begin blue so will become traps when pressed for the first time. Their positions are random (I should have made this clearer by jumbling them up on the main menu). The key to winning is to remember where all the traps are so you don't get eliminated.