The 3DS game. The main thing it had going for it was that it was a portable smash. Now Ultimate has that covered. All Smash for 3DS is now is an inferior version of Smash for Wii U with the same mechanics and characters but inferior controls and graphics. Every other game in the series has a unique feel and personality to it. Smash 4 in general lacked personality in its presentation even if it had a ton of great content.