Amazon offers Prime members Disney Epic Mickey 2: The Power of Two for Nintendo Wii for $3.98 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it adds $4.98.) That's tied with our expired mention from three days ago as the lowest total price we've seen for this platform. (It's a current price low by $8.)
Note that this item is temporarily out of stock, but can still be ordered at this price for delivery when available.