This was pretty good! It's a nice way to check how good you are with a keyboard, haha.
Good amount of juice, perfectly straightforward, and the stress when you get overwhelmed is quite a bunch.
Got always killed in the symbols wave onwards as it just didn't want to register a few symbols, sadly!
I'd add that the ships should speed up a for a little bit when you fail, just to stress me out more, haha.
keep it up!