Very fun and very polished! Loved the 1-bit sprite art and the cute/retro-computing aesthetics. The tutorial is also very well done, the player is told the basics in less than 30 seconds and then the difficulty nicely ramps up so they figure out the rest on their own. At least that's how it felt for me who isn't very familiar with autoclicker and tower defense games.
There really isn't much to criticize, but some minor nitpicks if you want:
- I feel like the main menu visuals clash with the rest of the game, I think keeping it black and white and conveying the difficulty in another way would feel more cohesive.
- audio-wise the liquid DnB works well with the internet/early-2000s vibe, but I think leaning more into the cat/cute vibe like you did in the intro and the main menu could also be nice. Some meow sfx here and there could be cool too
- on the main menu, right clicking adds a blue square to the background, that doesn't seem intentional
- custom animations for enemies instead of the squish and stretch would add some polish
Congrats on delivering such a complete and fun game in a week!