Looks like you've made a TON of progress since I last played. It's looking super good. I'll be writing my thoughts as I play.
Game started in fullscreen, enabling it in the options mode changed nothing. Same with borderless. Disabling them both made my tiny enough that the game was no longer visible, but it's resizable so who cares. The Video/Audio/Controls menus at the top are kind of hard to notice, and some people will probably miss them. The music you've included is very fitting. There's a bit of lag when loading new sounds in arcade mode, like when firing a missile or minigun shot for the first time. Onto actual gameplay feedback.
The slow turn feels really good. I don't think it would bother me if it was tweaked to be a bit faster or a bit slower, you've got some wiggle room there imo. It's good as-is too. The new(? I think it's new, or at least different from the last time I played?) level is fun. These kinds of games are like crack to me. I got around 100 kills and walked into the room with the TV showing a football match and it started lagging really badly until I died. I'm gonna keep playing another few runs, and if I have any more thoughts I'll update this post, but tl;dr the game is really fun already. Tell mom I said her art is cute. Great work.
Oh, and the kill counter gains a scrollbar and becomes basically unreadable after 100+ kills.