Nice game, I finished it.
I loved the retro 70s game aesthetic you went with, you really committed to it and it helped. Not only that, the game feels similarly retro in the way it plays(this is a good thing). You could have easily made the mistake of having this super retro look but hyper modern game feel and it would have felt disjointed, but thankfully the games mechanics feel retro in a very good way (Nicely done).
I initially found the second phase hard to understand but after a few attempts I got it, and I actually really enjoyed it. If you choose to update it, my suggestion would be to audio more audio feedback to surviving the second phase.
Overall, really good work, good mechanics that you followed through on nicely.