Update: The 20% discount is working on Smash now, if you weren’t able to get the deal earlier.
It won’t be out until some indeterminate date later this year, but it’s worth remembering that Prime members can preorder Super Smash Bros. (or any other physical game) for 20% off. It’s not unheard of for preorders of popular Nintendo games to sell out prior to release, so if you know you’re going to buy it anyway, you might as well put an order in, since you won’t be charged until it ships.
Note: Discount shown at checkout.
The same discount applies to other games mentioned in today’s Nintendo Direct, including my most anticipated game of the year, Mario Tennis Aces.