It's quite well done!
It looks good and sounds good and plays well enough. Even if you "have no experience making games" you did need to come up with an idea and get everything to work, which it does.
The concept of the cards to shift from defense to attack is interesting, but does have some issues. It isn't always clear what the correct answer is going to be. Tofu's start out directly matching pictures, coconut = coconut and so on, but later the connections appear arbitrary, coconut = pineapple instead of coconut = coconut milk. The correct answers in Sebastian's fight felt the must intuitive of the three, which was helpful since he hits so hard. If the intent, however, was to lose fights until the correct answers are memorized then it's working as intended.
The other thing about picking cards is that you can generally ignore defense entirely. As long as you do a single correct button press at most to buy time to select the right answer, you can immediately transition to the attack phase. Or if you don't know the answer, you can still gamble on getting it right or picking a neutral response. Tofu's fight, especially, never requires defending since he doesn't counter (as far as I experienced.) A more solid game loop could be requiring a full three+ defense and then the ability to select a card, rather than interrupting the defense sequence itself.
These are just my opinions and experiences, of course. :)