Thanks VERY much for your honest feedback. You validated a lot of the concerns I had, especially with the start screen. I actually wanted to make some visuals for the controls instead, and possibly make it so you couldn't start without at least moving and firing echos. And also having ping reminders on the second level.
Good call out with the keys and gates, too. Maybe I'll make them so they look more appropriate.
Thanks for trying it out and again for your feedback!