The best NES game? Probably. There is only one other game I can think of that comes close, and I'll reserve judgement on that when I eventually get to my replay (at which point, I'll be sure to update this review with my definitive answer to this question).
There is basically a second NES hidden away inside the cart of this game, one of the benefits of being a late NES release. That extra power is used to expand the formula of the first Super Mario Bros in all the right ways. A world map, a selection of different powerups to discover, 8 unique worlds with different themes, and a fresh coat of paint which still holds up to this day. SMB3 is one of the few NES games that is still just as good to play today as it was to play when it released over 30 years ago. Easily in the top 10 platformers ever made.
Do I need to say more? Play this game if you haven't. It's "required playing" in the video game cannon.
There is basically a second NES hidden away inside the cart of this game, one of the benefits of being a late NES release. That extra power is used to expand the formula of the first Super Mario Bros in all the right ways. A world map, a selection of different powerups to discover, 8 unique worlds with different themes, and a fresh coat of paint which still holds up to this day. SMB3 is one of the few NES games that is still just as good to play today as it was to play when it released over 30 years ago. Easily in the top 10 platformers ever made.
Do I need to say more? Play this game if you haven't. It's "required playing" in the video game cannon.