Superb G-darius / rtype delta vibe :) the impression to fly across a foreign new place is superb, the ennemies pop well, the camera changes are great !!!! One of the best so far ;)
Small constructive criticisim:
for the ennemies that throw the smaller candle like bullets, projectiles are very hard to see and dodge. You should display an indication of the mask to navigate such patterns?
Also, since destroying them is mandatory to go further, the patterns of these ennemies are too dense to kill them without damage.