SNG Trading via Amazon offers Super Smash Bros Ultimate for Nintendo Switch, bundled with the Nintendo Switch Pro Controller, for $119.95. Coupon code "SNG20S" cuts that to $99.95. With free shipping, that's $20 under the lowest price we could find for these items sold separately elsewhere. Deal ends December 16.
Note: You must be signed into your free Rakuten account to apply the coupon.
Uncle Sam could take a hefty chunk of your retirement income if you botch this.