It's well worth installing in your game, you'll like the extra features. Unfortunately you cannot reprogram the existing game chip as the new version requires more EPROM space, which means you need to upgrade to an 8Megabit (27C080 or equivalent). It's best just to buy an EPROM, already burnt/loaded with the Whitewater LH6 game code. If you don't do any good locating one, let me know and I will see what I can do.