Replay: Super Mario Bros. 2

I love the real Super Mario Bros. 2 infinitely more than Super Mario USA. The real one has such awesome brutally hard level design that remixes all of the stuff seen in Mario 1 to produce all new challenges you wouldn't think were possible when playing through the original. There are plenty memorable moments though my favorite is after a really difficult final castle the game ends with you fighting not one but a second surprise Bowser which is absolutely terrifying and thrilling at the same time. Also I do love that after you beat the game, you unlock a bizarre world 9 and worlds A, B, C, and D which further extends the game.

I do love Super Mario USA, but Super Mario Bros 2 is the better game for me. I fully understand most people will pick the opposite game but that's my defense of Super Mario Bros 2. Should be a good replay!

Edit: If you Super Replay it, you should use the All-Stars Collection since it lets you save after every completed level and you get 5 lives instead of 3. Plus the graphics look better. Also playing as Luigi is the way to go for the game since there are some jumps that are borderline impossible with Mario and some optional ones that are impossible without Luigi.