Wow, I'm glad you liked the game so much! Thank you.
Sorry that you only got 5 categories (there are 9 total) and some questions repeated. I programmed a tool so that questions wouldn't loop, but in my rush to upload the game last minute I forgot to turn it on. 😑
Your ideas for an expanded version are good too. The original concept was that the game was going to be more like Slay the Spire where you could play different trivia question cards that would give different effects/attacks. Alas, I didn't have time to do that sadly. If I ever do a full version I would definitely make the gameplay more interesting and flesh everything out a lot more.
I do plan on updating the game shortly after the jam is over to fix some things (pacing, audio, looping questions, etc). You're welcome to check it out again when I've done that if you want.
Thanks again for your comment, it means a lot. 😄