Soldner-X 2: Final Prototype

Clear the fourth stage at any difficulty level without missing any enemies (3 errors are allowed). Unlocked after completing the 'Little Gunner' challenge. You will miss at least one, due to only being permitted one path while dodging through the islands (unless you have the Spread weapon equipped). Pay close attention to enemies that spawn directly on top or (more often) at the bottom of the screen, and kill them quickly. Clear the light-armored enemies first, then focus on the heavyweights (who tend to stick around a lot longer). There are little satellites that leave a larger ship that are very difficult to track down once they leave. Your best recourse for those is to shoot them before they deploy. Thankfully there are no enemies during the boss.