I found it to be quite inventive and enjoyable! With some polish, all of the enemies could feel really cool, and the art style was refreshing. The main thing holding the game back is its length. There isn't enough variety in both enemies and upgrades to keep the game engaging for the length it takes to reach the boss. Each room also became a bit of a slog, as more enemies with more health would keep on piling up - I would rather have enemies that are more challenging than just being bullet sponges or overly hard to hit.