Boarder Zone - Platform: Gameboy Color Challenge mode tracks --------------------- Enter 290771 as a password to unlock tracks 4 and 5 in challenge mode. Time attack tracks ------------------ Enter 131095 as a password to unlock track 4 in time attack mode. Slalom tracks ------------- Enter 310169 as a password to unlock track 5 in slalom mode. Bonus track ----------- Enter 020971 as a password to unlock a bonus track under challenge mode under the time option. This code is revealed after race attack mode is completed.