How Many Paths?

#1cadashererPosted 1/14/2009 5:06:14 PM
So how many different combinations of paths are there? Aren't some paths unlocked depending on who you shoot down?
#2davebrit2Posted 1/16/2009 4:00:38 AM
You get to the secret stages by having a certain number of stars (in the upper right corner). I don't know the exact amounts you need, though.

Stages 14 and 15 are reached by clearing the first 13 stages without continuing. I'm not sure if the various targets in previous stages are a requirement (shoot down the prototype, shoot down the stealth bomber, etc).