    * Keyboard arrow keys:
            Left/Right -- Move camera Clockwise/Anticlockwise
                          around Tux.
            Up/Down    -- Move camera closer/further from Tux

    * Keyboard Ins/Del cluster:
            PgUp/PgDown-- Move camera higher/lower relative to
                          Tux.
            Home       -- Reset camera to defaults.
            End        -- Toggle camera between following behind
                          Tux or moving parallel to him.
            Insert     -- Toggle wide field of view/narrow field
                          of view.
            Delete     -- Quickly move all the way in close or
                          further away.

    * Main keyboard:

            SPACE    -- Toggle Menu - also gets rid of on-screen messages.
            'r'      -- Roll.
            'p'      -- Toggle Pause mode.
            ESC      -- Exit game.
            ^C       -- Exit game.
            'h'      -- Enable Help screen
            'a'      -- Enable About screen
            'Tuxedo' -- Enter cheat mode (type the whole word - case sensitive)
                        this password will be changed when the game reached a
                        playable state.

          CHEAT MODE CONTROLS:

            'x'      -- Exit cheat mode
            'k'      -- Toggle "move Tux using number keys" sub-mode.
                          1/2     -- Move in X
                          ./ENTER -- Move in Y
                          -/+     -- Move in Z
                          4/6     -- Change heading
                          7/9     -- Change roll
                          8/2     -- Change pitch
                           5      -- Stop rotation
                           0      -- Stop all motion
            'c'      -- Toggle debug "console"
            '?'      -- Display Tux's coordinates on console.
            '-'      -- Skip to next level.
            '+'      -- Go back one level.
            't'      -- Toggle texture on and off.
            'w'      -- Toggle wireframe on and off.
            'f'      -- Stop enemy critters and other animations from moving.
            'r'      -- Recharge lives, herring, air, health, snowballs,etc.