Walmart has for New Google Express Customers: Super Mario Odyssey (Nintendo Switch) for $45 - 25% off w/ one-time use promo code APPHOLIDAY25 (max $30 discount) = $33.75 when you checkout via the Google Express App. You have to buy it from your phone.
Shipping is free.
I got bestbuy to pricematch it for me. YMMV but it's worth a try.