I just looked for hidden platforms in empty space and couldn't help but notice something red among the black and white things around it.
Last time I played Echoes, it was the Light Aether part of the chamber you see the Boost Guardian roll into the arena where you're supposed to follow. That enemy that hangs around all the way up there always knocked me off and I had to act quickly to shoot it down. Took me several tries.
The first time I played Echoes there was this Missile Tank in Sanctuary Fortress where I had to run this one-way maze. If you fail, you have to get back up using the Kinetic Cannons. On that run I think it took me like 5 or so tries.








