After playing a few AI slop games in a row it's refreshing to play something where you can see the effort of someone learning how do get good at art (not an insult!)
I can tell where there were struggles were in the development in this with learning the engine. It looks like you placed the spawn point for the bullets properly, but didn't move the Origin point of the bullets to the center of the object, etc.
Not common to see a contra-style game like this, I can tell it was a very formative game for y'all :)