C: The Contra Adventure

Screenshots:

Background:
This game starts out with a comet crashing down to Earth. But soon after aliens start appearing near the crash site leading to fears it was actually a transport ship. After a scout send out to investigate goes missing, Commander Ray is sent for to go and find her. Using whatever weapons you can get your hands on, your job is to traverse the 9 levels and rescue the missing scout. Can you do it...?