Hey, solid submission! the trade-off of life and weapons works very well, and the art,sound and text has a nice retro feel to it. If you decide to push the game further, it felt a bit punishing not having any mechanic to recover health, and the third level was extremely hard (no turret placements) Anyway, good work!
Solid proven mechanic, with original twist. Dialogue tree to slow down enemies is briliant, but I was actually interested in the story the most. It was simple but intriguing. Some UX improvements would be to display area where towers can be build and health above enemies. Also, the third level felt a bit too much restricted as to where you can build the towers.
If you decide to push the game further, it felt a bit punishing not having any mechanic to recover health, and the third level was extremely hard (no turret placements)
Anyway, good work!