To skip levels, hold down 'ALT', 'CTRL', 'R SHIFT', and 'N'.

        For extra balls, hold 'ALT', CTRL', 'R SHIFT', and 'L'.

        To skip sections, hold 'ALT', 'CTRL', 'R SHIFT', 'T' and a number
        '1-5'. 
        
        To increase playability, hold down 'L AMIGA', 'R AMIGA', and 'CTRL'
        (reset your amiga).