Pretty nice mix of shooting and hack n slash,
i like the movement and the way you can easyli go from walking to airborne with afterburners on full thrust with just one button.
And the music is awesome and pairs nicely with the island setting ^^
Also dig the very gundam style mechas, the player's sword is also quite badass, and i like the animation of the shoulder canons deploying when you aim and then folding when you get back to the sword, plus i really like the sense of scale of the large ship you defend and the even larger enemy ship that spits out attackers.
My only gripe is the difficulty, the attackers respawn way too fast to deal with them solo and go for the ships turrets at the same time.
However that being said i really dig the fact that you have to take on the large ship in steps with having to focus on turrets first to then have it be vulnerable, i don't know if it was one of your inspirations but the game gave me some gun metal vibes and thats really cool !
So other than the difficulty balance, had a good time with this one, well done :)