Hopefully you had the latest build, a lot of the games had a common problem tossing out a loss for no good reason due to a hotfix fuckup.
If it helps, you can press F for fullscreen, Admittedly I had plans to change the font but the end of the Jam wasn't friendly on time.
On the difficulty, the design is intentionally based on arcade cabinet games that were low-info quarter-eaters. Figuring out how to play them is part of the challenge. This is pretty universally frustrating design that was never really liked 30 years ago either. Sorry it missed the mark for you but I don't take that personally at all!
If you like the general vibe, check out Shoot or Cute on our profile. It's a little less intentionally punishing, and a bit more modern.
We'll be tuning up one of the character games, and expanding out the Parlor to include more public domain games. If you're enjoy our work outside of the gameplay, we'll definitely be making a LOT of experiences with this theme and tone.