This is a really good game!
the 90s manga/anime atmosphere is nice, even with the fat character with the mustache and the hat pulled down over his eyes.
music and sfx at high levels, beautiful VFX. The retro-pixel graphics are beautiful in all their parts, although I would have preferred a greater homogeneity of pixels in the dialogue scenes between the central portion and the side portraits. nice font!
difficult but well-calibrated playability (a little more speed in the WASD movement of the spacecraft would have made my life easier).
you could make a larger version, perhaps putting side-scrolling parts outside the ship