Popular games for collection Vulgus

This was Capcom's first arcade game. The player controls a spaceship with a single objective: destroy incoming enemies. The vessel has two different weapons: a primary weapon with infinite ammunition and a limited supply of bombs. By picking up the "Pow" icons, which sporadically appear throughout the levels, the player can replenish supplies. [wikipedia]

Titan Warriors is a cancelled shoot-'em-up that was developed by Capcom for the NES / Famicom, in 1988. The game was meant to be a sequel of Vulgus, an arcade shooter developed and published by Capcom in Japan in 1984.