3. It’s a Copy of Another Level
It is understandable that Nintendo had to repeat some levels, considering the technical limitations of the time; but why pick 7-3, which was a horrible level already? Why not pick an actual good level?
2. It Mixes Three Luck-Based Mechanics for Optimal Bullshit
Namely, wind, springs, and Lakitu—the first of which Miyamoto himself agreed was an unfair mechanic. The springs cause your character to leap so high that you can’t see him, meaning you have to predict where he’ll land when he inevitably does. If you don’t magically predict well, expect him to land in the abyss. Sometimes you may land on a Spiny egg Lakitu just-so-happened to throw.
Actually, the best part about this level is that the existence of Lakitu is the only difference between C-3 and 7-3—and yet he barely makes a difference at all, considering you spend most of your time in the air. He’s just a rare, random fuck-you sometimes.
1. Glitches Are Great! (Famicom version only)
Oh yeah, and sometimes a spring won’t spawn, making the level literally impossible.