Great potential, but large hazards
6/10 is my way of saying you just failed, BUT it's for very critical reasons.
Overall, the game is a good idea. Lots of power ups, a large variety of enemies each with interesting character traits, and even the add ons to your ship have a lot of character of their own.
Your ship is bright green and so are the drones. As mentioned before, this makes it difficult to orient your eyes for evasive maneuvers. Given that the drones do not significantly enhance your firepower or shoot down oncoming fire, this makes them more of a hindrance than they're worth.
The life bar reduces from the bottom on up. This might seem clever to some, but there's a reason that most games have it reduce from the top. It's a natural inclination to expect things to fall when diminished (think gravity and water). The outline of the life bar itself is a bad idea. Although it's nice to have an idea how far from the top you are, the outline of the same color can be difficult since most track it with their peripheral vision only. A different color outline or no outline accompanied with a large numerical (preferably percentage) display sitting on top of it would be best.
The levels are fairly short, which is okay, but it might be nice to see them be longer with a sub-boss or waypoint to help ease the pain of death. Additionally, a slight increase in weapons upgrades might be suggested, given that ammunition runs short quickly. I am fine with the lack of autofire and the use of the ammunition, but keep in mind that most fans of arcade shooters are accustom to trends set forth in games like Raiden. It's not that your game is bad in its design, but your audience may (use other reviews to determine if I'm correct) prefer something more fancy free.