Metal Wings: Elite Force - SourceCodeGame

https://play.google.com/store/apps/details?id=com.os.metalwings.elite.force

Metal Wings: Elite Force is a 2d side-scroller shooter with classic features from the bests and new unique mechanics. Play as a soldier Contra from the Elite Force Metal Wings of another world with advanced technology, uses the iconic weapons and shoot down anything that harming the peace, from bio-tech soldiers to huges mechanic weapons, plus unique bosses all waiting for you in the battle zone.