An OK upstart of a game, but...
1. Difficulty is all over the place. Even on easy it gets unenjoyable - fast.
2. The game tries to be a lot like "Raptor: The Call of Shadows", a true classic. Tries, and fails miserably. You do get a shop for changing loadouts, you do get a smartypants shop owner, you do get a plane with shields, you do get the top-down scrolling... and not much else.
3. Weapons are ridiculously underpowered, requiring a lot of stay-on-target time.
4. The game still requires polishing, even without the balance issues. Music lags constantly in all the menus, sound design is mediocre at best, and it all requires an old version of nVidia PhysX just to run (builldings falling into pieces? planes dropping out of the sky? we could do without it at no gaming experience lost).
All in all, a disappointment. Even if you see it at a bragain price somewhere, bear in mind that it might be not worse your time. Pick Jets'n'Guns instead if you really are a SHMUP fan.