I was able to get the price match with the Toys R Us online image on my phone plus the flyer at the Square One Walmart.
I did have to do a little explaining, but the cashier eventually happily rang it up for me. It's true they do not price match by percentage, but if you show them the item online reduced plus the flyer and calmly explain then you might get it. All depends on the cashier and or manager on duty, but I've been successful at Walmart 3 times during this recent Toys R Us sale.
Good luck