The save slots are actually using playerprefs - I plan on putting the game in a few places, so I don't really want too much to depend on kongregates API. It writes out a string that looks something like 0>1>3>0|11>04> etc. and when you load, reads it back in using > to mark the end of a number and | to mark the end of a section. I can post the code on the unity forums if you like, but it isn't particularly well written :/
The scoring system gives points for time survived and enemies killed. To get loads of points, however, you need to keep a high multiplier. The multiplier is increased by killing enemies (particularly big ones), and drops down over time slowly. Your multiplier goes right down to 1x if you get hit, so the big scores come as much from dodging well as blowing stuff up. One trick that works well is to drop a heavy bomb then turn on your shield - the bomb will kill lots of enemies, and the shield will stop it killing you or resetting your multiplier.
Thanks for all the comments/bug reports. Kongregate has easily been the most useful place I've posted this :).
impet: Thanks for letting me know, I'll try to figure out whats going on.
CarbonTech: Yeah, there is a bit too much hitting new players at once right now. Eventually, I plan on having a level up system, so you'll start out with a ship that only has basic movement and a single primary weapon. That will make the game easier to learn as well as providing some motivation to keep playing.
@Barnard: Did you try the graphics settings buttons? Turning it all the way down usually gives a fair few frames. It also runs better on fullscreen, which doesn't work on kongregate :/. If you're interested I'll PM you a link to a non-kongregate version, I'd be interested to see what framerate you get there.
@Bob - To get the angry bears, go into the hangar and select the bearserker teleporter as a secondary weapon. It takes a fair while to lock on, but once it does (there'll be a beep and some red triangles around the target), right click to teleport them. They'll roar, eat the enemy crew and steal their ammo, resupplying your other weapons.
Looks like fullscreen doesn't work on kongregate - anyone know if that can be fixed or should I just remove the button from this version? I'll be putting up a new version which puts the high scores through kongregate in a few days either way.
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