Looks very polished on all departments, so your team did a great job. My only feedback would be:
- From what I have seen there is only 1 type of boss? Would like to see more with more boss arena variations, cuz on 4th time it becomes kinda repetative;
- Also iirc 4th boss can kill you with fast moving arena, which is a bit anti-climatic, cuz before you could touch it safely, but then with a bit of a speed buff it is just one shots you, like I think player won't expect that;
- I would remove filter on the ship upgrade UI , because you need to read there what upgrades do, but then filter's thingies annoy you, cuz they cover the text.