Yeah! Let me try to explain.
After I finished the game, I was trying to consider whether this was more of a FPS game or more of a puzzle game since it combines elements from both. I wasn't sure.
The first level leaned FPS-heavy but those aiming/shooting mechanics weren't involved in solving the puzzle other than helping the player survive and unblocking the way. The second level required using FPS skills to survive and solve the puzzle, which I thought was a really great way to tie both genres together. The last level didn't involve FPS skills to solve the puzzle.
The FPS and puzzle mechanics felt disjoint to me because the player isn't consistently using their FPS skills to solve all of the puzzles. I think the second level did a good job of requiring those skills, but the first and final levels could be solved even if there weren't any enemies spawned on those levels.
I think you've got something special here, but I do think the game could be stronger if it was more focused towards one genre or the other, or if the game really leaned into combining the genres: e.g. consistent combat in every level and requires FPS skills to solve all puzzles.
What do you think?