Thanks so much for the feedback!! I am glad you were able to pickup on the overall gameplay idea from my really rough demo.
I have continued working on it over here: https://retrogamingdev.itch.io/signal-in-the-dark-post-game-jam
Not a ton more at this time, but I do plan to keep pushing more features and gameplay elements. So far I have added a 'temp block' that the player can drop to block the enemies, which adds a bit to the strategy. I have some plans for some new enemies and some other player actions and random powerups (such as things like a temp invisibility that resets the enemy rage).