I agree. I liked the introduction and graphics but the gameplay is dull. Since all you do is stand in one area and shoot left or right, and with all the life/ammo power ups.. dieing is not an option really. I would like to see more of an adventurous type of game that you shoot left and right WHILE getting to a new area to do something, such as closing exit gates to prevent civilian exposure to the zombie things.
Oh,I'm not going to continue this game because it didn't turn out the way I wanted it,and the way I wanted it is as everyone is suggesting,but the file was acting gay and I couldn't get it to scroll,so I'm scrapping it.
Excellent Graphics, you should be proud of that.
And the intro is good although it would have been great if you had a bit better writing.
I like to have constructive criticism and I'm sure other people do too.
I would have preferred more of a adventure-type game with some battles with those plant guys, and with a dark world and horror-like sequences it could be really cool.
Scrolling would be nice, but just screen-to-screen would be fine too, just add a bit of flavor to the basic action game.
Also you need to make the game where you require skill to play, endless hordes of guys you have to decapitate isn't a whole lot of fun, especially without needing much skill to defeat them.
I would take that engine, upgrade it and add some adventure elements (Like items you need and elevators, doors etc.) and make a nice big game, it has alot of potential, it would be a shame to waste that.