The game is designed to be used and useable (and fun) when used with the mouse. If you are happy with the mouse UI, you may ignore the rest of this post.

Gamestart

Space ... New game "right now"

K ... new game with difficulty options

L ... Load saved game

C ... show credits

During the game

Use arrow keys to navigate and Space to select

Choose the trumpeter (announcement action) by pressing T

Have fun!