Nice rail shooter.
I really like the mech design for both the Gundam inspired player mech and the red boss mech in mission 2.
Gameplay wise this reminded me of a sort of mix between Space Harrier and Starfox which is quite a cool mix ^^
The music is also really good and quite catchy.
The only issue i had was that the collisions that were sometimes a bit weird, some enemies i couldn't seem to hit at certain angles, and the elite mech boss didn't seem to take any damage what so ever so i kinda got softlocked at him.
Regardless what's there seems pretty solid, just a bit of fixing here and there and you've got a cool shooter. Oh and also gotta love that 4th wall break in the story with the mech name and the time they developped this prototype weapon :p
Overall well done :)