Just like in old text based games typing in the word help would provide some basic information of do's and dont's while typing. It could be helpful for the user to have some help text.

And how is the difficulty level? thanks!

If text is too long it immediately goes to the next page. You need to place a "Hit Enter To Continue" or something like it so people can read the text first before it quickly disappears and you missed reading something.

Once you start to play the game you cannot just type quit and exit the game. There doesn't appear to be a way to exit. The only way to do so is once the game first loads and you are on the menu screen.

Title speaks for itself.