Well, it definitely feels like a first game. Which isn't a bad thing, you're still new to this. It would be weird if this was fantastic.
Not sure if this is caused by my old laptop, but it would often not register my clicking. To the point where I wasn't sure if I had to click in time with the music, or if there was a cooldown if I clicked often.
Another thing is that it was hard to tell if I was doing something right or wrong. There's not enough visual or audio tells that tell me if something is damaging me, or if I'm doing damage to that plant. I can tell you want to have minimal sound design, but you still need something to clue in the player. Doesn't have to be a harsh grunt or scream, I've seen games where all they use is a piano for everything.
Overall, you still have a long journey ahead of you if you want to get better at this. One suggestion I have that could help you is to look at your favourite games, and study what makes them feel good to you. What they do right, what they do wrong, what makes their controls flow, and what about these games feels special to you.
Looking at game design tutorials helps too, but don't over rely on them because it can ruin some of your creativity. Instead use them when you really need help with something.
That's all I have to say. Good luck with your next project if you decide to continue.