needs to be able to replay finished areas because you can get stuck on missions that are impossible to beat with the upgrades you have and then you get stuck grinding for 800$ and an upgrade is 30k
if you're having problems with a boss try switching what kind of ship you use, ive found the red ship is great for boss #2 but doesn't do so hot in the regular levels
cwalsh, thats the idea. you only have aura when the monsters close in on you. dont worry its the hardest levels of them all, just upgrade the units that come out
Some tips
1: you can kick over someones head
2:you can curve the ball
3:play arcade for the medium badge and you will rarely miss any shots in career, great practice.
4:in career if you gamble too much, you lose a big portion of your relationships