Not bad. Pretty simple, not extremely original, but challenging enough and has a good bit of variety.
Certainly could expand this, first thing I would do is make the enemies behave a bit more interestingly. All of them just following you, not shooting or behaving as a crowd at all, is pretty boring. Adding different and more interesting powerups, or have a shield or armour upgrade would also go a long way.
Pretty nice start you have here, 3/5, I hope to see it expanded!
Too easy, balance it.
Slow, add a speed-up button or speed setting.
Repetitive, slow down our access to guns or make more expensive ones more exciting.
Nothing new or particularly well-executed
2/5
Does not excel. Premise has been seen before. Mechanics are poorer than similar games. Weapons unoriginal, unexciting. Short and boring. Bow not nearly as cool as I had hoped. 2/5
OK game, nothing new, but interesting enough. Weapon upgrades unoriginal, but berserk and bullet-time somewhat novel. Controls are poorly executed.
3/5
This game is awesome. Very old-school, not only in aesthetic, but in challenging, simple, but brutal gameplay. The frame saves were friendly though, thanks!
5/5!
Cool game, buggy buggy mechanics. I love how I can beat most levels by awkwardly placing a piece between existing pieces. I think the friction carries over.
3/5
Good game. Pretty complex, and the computer is unfortunately easy to defeat, but good game.
Wish there was more content, like a hard mode or more map variety, that would bring replay, though.
4/5
 "Music Catch 2"){kind=icon}
 "Super Stacker"){kind=icon}
 "BowMaster"){kind=icon}
 "The Line Game: Orange Edition"){kind=icon}
 "You cannot survive v1.04"){kind=icon}
 "Death vs. Monstars"){kind=icon}
 "Frontline Defense Beta 2"){kind=icon}
 "FWG Knight 2"){kind=icon}
 "Shopping Cart Hero"){kind=icon}
 "Eternal Red"){kind=icon}
 "Bloody Fun Day"){kind=icon}
 "Don't Look Back"){kind=icon}
 "Thing-Thing Arena 3"){kind=icon}
 "Perfect Balance"){kind=icon}
 "Divine Generals"){kind=icon}
 "Minions"){kind=icon}
 "Mechanical Commando"){kind=icon}