it's a nice trip down old school lane. however, the music is grating and could have a more chip tune or slightly 8 bit theme to it. i suggest a rip of the commodore 64 version of ghosts and goblins or NES SMB
Fun game, graphical bad
A fun game, the only thing that misses is the old school feeling.
Everything looked like it was made out of a vector, which is the wrong graphical approach for a game that wants to look like an old school type of game (note that the turret looked "right").
Also bug I noticed is that bullets sometimes goes through enemy units.
Other than that I loved it. I love the music and the old school atariesque feel. Make some more levels or find another way to extend it and you have a winner.