needs instructions and a less sensitive mouse
Overall, the game was pretty decent, but I have two major complaints. The first is, obviously, the mouse sensitivity. I would make the horizontal mouse threshold at least twice as big to allow room for error on the harder levels. During the last two levels, my computer was lagging and I kept zig zagging all over the screen, which made it almost impossible to aim accurately. Having a lower sensitivity would allow for smoother movements, which in the beginning of each level, where energy is crucial, is a must.
My other complaint is that there's no instructions to the game. Sure, it's simple, but I feel as though I'm being left out of the loop on what weapons do what, or what each enemy is. I had to start off each level that had a new structure by shooting it to see what, if anything popped out, usually to my dismay. To that end, I'm writing a basic strategy guide here.
The first thing you want to do in each level is fly from one end to the other. Take note of what enemies are where and plan accordingly. If there's an energy shield up, note what's underneath it and move on. Find a spot, usually on one side of the map, and begin taking down a basic building. If an enemy approaches, try to destroy the building, then fly over it and go to the other end of the map and repeat. Keep doing this until you've unlocked the laser.
Once you have that, begin fighting enemies. For missles and helicopters, fly over them and hit them with the beam. For turrets and tanks, try to avoid their line of fire, and engage them by themselves. a couple turrets next to each other is a headache, especially if they have a repair drone building near them.
Speaking of drones, make them your number one priority at all times. Anything they repair, even a tiny bit, will come back online to bother you. This can be a good thing though, as you can destroy that thing again and gain more energy from it. Work from the one side of the map to the other, targeting drone buildings first, airborne enemies and the buildings that spawn them second, turrets and tanks and their spawns third, shield generators and regular buildings forth. It all comes down to prioritizing enemies and working around them while you build up energy and unlock weapons.
On to weapons. The basic shot that you start with is crap, but it will take out a building and sometimes a repair droid or two. If you get hit, fly away from enemies and up into the air, select the cross and left click to use your energy to heal yourself. use these until you get the laser. Once you get the laser, you're pretty much set. Use it in pulses to destroy droid buildings, helicopters, and missiles until you get around 2400-2600 energy, at which point the laser will stabilize and you can fire it continuously without running out of energy. Go along the map, taking out droid buildings first, then enemies, then everything else. As you go, you'll unlock the charge shot which, at higher energy levels, is good for taking out heavily fortified buildings, like tank, helicopter, and missle spawn, in one or two shots. Unfortunately, it uses all your energy, so don't rely on it. Once you get the strategy down, keep going with it until you finish the game.
Things to remember: Missiles HURT! they do a whopping 25% damage every hit. prioritize them over helicopters unless there's a whole flock of them after you. To get rid of missiles, use the laser and fly directly above it. It will stupidly aim itself right into the beam. Copters can be taken out much the same way, but with more side to side movement, as they like to be on each side of you. With turrets, you just have to bite the bullet and park yourself right over them and kill them with the laser. Same thing with tanks, but you can kind of lead them a bit to avoid some of the damage. Also, as soon as you get a shield down, go straight for any droid buildings underneath it, then enemy spawns. As you chip away at the droid infrastructure, keep an eye out for rogue droids running off to repair stuff. With this strategy, the game took me about a half an hour.