Knuckles Red Mountain A

Sonic Adventure DX, Knuckles in Red Mountain, objective A, which is to find all the Master Emerald shards within a minute.

There's a bit of trial and error in finding the shards. They spawn at several different points, but it is always possible to finish within the time limit, which means if you find one, travel three seconds in one direction, and you don't hear the indicator, you're going in the wrong direction. At the end of this run, I know the last shard is in one of two locations, so naturally I pick the wrong one at first, and then intentionally kill myself to respawn and reset the timer to where it was when I got the second shard. After that, it's a straight shot to where I know the other shard spawn point is.

Fan video.