To hell with all of these nay-sayers.
I haven't been challenged like this in a long time, I think they're pissy that there is no easy way around this.
Unlike many classic arcade games, there IS limited ammo, which means I had to change my play-style completely. The strategy I go with is usually making figure eight's "dancing" around the opponent only popping a shot when I get close, then collecting all I can for the erratic moving enemies later in the game... These enemies later on in the game have movement patterns that throw me off with the way my avatar handles, so this also forces me to rethink my strategy. It's not really frustrating, but definitely challenging.
Luckily, after collecting enough ammo, or killing enough enemies without getting hit, you can recover lives. This helps tremendously due to the game's difficulty.
The only elements that I would really change;
-Have built-in original music that you can toggle on/off (Usually on my computer, I just flip on my Media Player and I can play this at length, but today I'm on somebody else's computer, and lack of music really did have an impact on me...I dunno, maybe that's just me.)
-Make the ammo counter larger, and easier to glance at.
-MULTIPLE DIFFICULTY SETTINGS; (Hell, make what it is now "Normal" and make an "Easy" for the whiney A.D.D. kids below me.)
Either way, I appreciate the challenge, I love the old, retro feel to it, and I thank you for this game: Keep up the awesome work, Josh!