GAMEPLAY: I belive it's called twinstick, yes. Well, diving into a star got you an achievement :)
VISUALS: thank you for the compliment :)
AUDIO: it was full blast on my headset and on my mobile export... I still have to finetune my Godot audio skills, it's always too quiet or too loud. I also forgot the thrusters SFX, no excuses here. Noted on proximity cues.
THEME: you can park immediatly close to the black hole and wait for five minutes and some seconds, it gets intense :D