Uh, oops. UI scaled for 1024x768, changed game's resolution to 800x600. Apparently I didn't use the RectTransforms correctly because the UI broke a little. The game was still fully playable, but UI elements like High Score and text in the word "Score" were cut off.

I had lowered the resolution mid-compo because 720p displays wouldn't be able to fit a 1024x768 game.

The fix (scaling down a couple UI elements and cutting out some text) is documented in https://github.com/chronosv2/ld38/commit/87788345036c92d0be8fbdcfc7461ada1220b6bc

Play the game at https://chronosv2.itch.io/destruction-zone

As far as I'm aware that was the only thing wrong with the game, so that's a relief.