The balance isn't very good. You can use the pistol all the way up until you can afford the minigun as long as your basic tactics are ok. Didn't really present any sort of challenge until mid to late 20's, and even then all it required was a slight modification in tactics.
There doesn't seem to be a way start a new season without finishing the old one - needs a 'New game/Continue game' screen, or a 'Wipe all data' button.
Fak24, for lv 7 put your mouse in top left of the screen, hold the mouse button and drag to the bottom right. You'l see the button appear. (the hint to find this is in the lines of the border)
No instructions, no idea what to do. Completely unplayable. Even if I knew what I was supposed to be doing, I don't feel like I'd be enjoying this game.
It bugged for me. I had a fully upgraded launch pan and nearly fully ungraded engines/fuel. The whenever I'd make a launch the launchpad would explode and throw me off the top pof the screen (think this part was deliberate) but then I couldn't use my thrusters at all, and when I did try it would freeze the picture (but not the game). Reloaded the page but it doesn't; appear to have a save feature so I lost everything.
@Chatter
Definately harder to play these games as a musician. I tried a drumming game in Tokyo a while back, it had a full kit set up. Failed asolutely dismally despite more than 15 years experience with the real thing :-(