>>719758672
And I find that Fusion is the only one where I could find humor in secret design. Instead of bombing your way trough a wall down, there's a column that appears that sends you up. Instead of going the obvious way trough a suspicious tiled wall, it's actually the floor that gives in. Those kind of things are a suversion of that I said here >>719756172 of what I called the conversation between the dev and the player.
Secrets feel like a personnal attack, a personnal link to a specific developer's mindset.

To me Fusion has the best secret design of the series for those reasons. The (currently final) form of the evolution of secret design in the Metroid series.