Chalgyr's Game Room writes:
You can’t get more ‘old school’ than the strangely named Vulgus. This is Capcom’s first arcade game, released in 1984, and can be found in ‘Capcom classics collection-vol. 1’.
Vulgus is a simple, vertical scrolling shooter. You control a small aircraft and face dozens of enemies which shoot bullets or just crash on you. The latter happens often because opponents tend to appear from the sides of the screen and then swarm in on you. Your weapon shoots only directly ahead and its rapid fire mode isn’t fast enough. There are no upgrades or smart bombs either. So, Vulgus is very hard from the beginning. Take into account the absence of continues and you end up with a game that punishes you repeatedly.