Block Hole is a hybrid puzzle game/shoot 'em up developed by Konami which was released in 1989 as an arcade game, known as Quarth in Japan. Besides the arcade version, there were also ports of the game to the MSX2 (with a built-in SCC chip), Famicom, and Game Boy—home releases used the Quarth name worldwide (with the exception of the …

This game is known in Japan as "Crazy Cop". King Records released a limited-edition soundtrack album for this game (Konami Game Music Collection Vol.0 - 276A-7708) on 21/07/1989. An overhead shoot'em up where you play as a green-haired dude.

In the darkest reaches of infinite space, pure evil lies in wait ... The Dark Forces led by the god of destruction, Bacterian, prepare to launch a massive onslaught against the planet Gradius. Possessing unstoppable power, the Dark Forces threaten to plunge the Universe into total war and complete annihilation. Their invasion force smashes the Gradius defenses, and the surrounding …

A classic horizontal shooter where up to four options can be added to your ship by collecting the bonus items released from special destroyed enemies. These items also provide speed-ups and different weaponry. The second button lets the player determine the proximity of the options to the ship as well as access to the other options.