I'm glad you took my advice the way I wanted it to communicate. Also, it's very mature of your part to actually get all kinds of feedback in a constructive way. I get that space invaders might be a big inspiration for you since you already learned how to code it, for what I understood, but remember that the best games are the ones with original ideas, so you can get inspiration from everywhere you want, but to get something unique, you probably will have not to learn how to code a certain game, and instead, learn how to code YOUR specific game, get things to work the way you want.
Glad to hear you'll try my game tomorrow! Hope you spend a great time while playing it! I'm also not that expert in jams or game design, but the project I came up with seem to be of the taste of some folks over here, hope it is yours too!
And remember, even if you don't win the jam itself, you'll still gain experience from it, and that will make you improve in the future, I'd like to see more of you on some next jam, maybe Minijam 92 or anything you choose, that's up to you.
All my best wishes!