Steel Empire

A prediction is that before human civilization, there was once an advanced civilization on Mars. A sorceress destroyed the civilization and everything that was remembered of it, except a chip called "INFINITY". In 2100, millions of people were starving due to massive food shortages and has caused civil wars around the world. Centuries later, however, the world government had sent colonists to Mars which began to solve these problems. At a nearby farm, the Infinity chip was discovered and it revealed all the technology of the advanced civilization. In 2309, a Declaration of Independence has been sent to Earth. Large armies have been amassed on Mars, and a gigantic armada was waiting for any attack from Earth. The Earth government sends out a fleet of battleships followed by a special air raid unit called ACID; ACID is equipped with a new fighter ship known as the Mosquito. Their mission is to enter Mars, stop the rebel violence, locate and destroy the rebel leader, whoever... or whatever it may be...

The fourth installment of the Panzer Dragoon series has you playing Orta, a young girl who has been imprisoned by the Empire. Under a wave of attack, the prison camp is broken through by a mysterious dragon, and Orta takes it upon herself to ride the dragon, and destroy the Empire once and for all. Along the way, she will also discover her own destiny, and the mystery surrounding her new friend. Simply put, you have limited control of the dragon for most of the game, as your trigger finger will be shooting non-stop at the enemies that fly around the area. Orta will be your main source of fire-power when you simply press the fire button, but by pressing and holding, the aim cursor will change, allowing you to fire a burst of power from the dragon at whatever the cursor aims at. The dragon itself can change into three forms at a press of a button. Each form has a different style of attack and power ability. A port of the original Panzer Dragoon is included.

A horizontal shoot 'em up that casts you as a baby dragon out to free a princess from the clutches of an evil....well, you get the idea. Gameplay is traditional, with power-up weapons that include multi-way shot and 'miniature' mode and a sort of reverse R-Type beam where you don't shoot to power it up. Also contains 2 minute and 5 minute time attack modes.

Abadox is a video game for the NES, subtitled The Deadly Inner War. It is a side-scrolling shoot 'em up in the vein of Gradius and R-Type. The game is notable for its unique visual design, as the game takes place inside the intestinal tract of a giant alien organism. Abadox is also known to be difficult, since it takes one hit from an enemy projectile to be killed. In Abadox, if a player is killed, they must restart from the last checkpoint before death.

Known as Thunder Force IV outside of North America. You must lead the battle against the evil Lohun Empire. Their computer system is poised to destroy your Galaxy Federation's defenses. Lead the attack on their heavily defended military planet. Knock out the planet's command center to pave the way for the invasion force. Take the fight underwater to destroy massive marine battlecruisers. Launch magnetically-charged photon blasts at alien bio-machines. Twist through the labyrinthine structure of the enemy's Bio-Base. There you'll meet your final objective, the destructive regenerating computer. Cut loose with the Thunder Sword, your most powerful energy beam, as you battle this ultimate weapon!

The series is set within an alternate history of the 1930s invented by Weisman and McCoy. Within this divergent timeline, the United States has collapsed, and air travel has become the most popular mode of transportation in North America; as a result, air pirates thrive in the world of Crimson Skies. In describing the concept of Crimson Skies, Jordan Weisman stated he wanted to "take the idea of 16th century Caribbean piracy and translate into a 1930s American setting."

In this shoot 'em up the player has to fight off four assault waves consisting of different enemy types until he reaches a huge UFO. After destroying the protective plates guarding the UFO's pilot in his cockpit the player can kill the pilot. The game starts anew with harder enemies.

This horizontally-scrolling shoot 'em up features six long levels, all with detailed and mellow background graphics, aiming for a less hectic feel than contemporaries such as Project X. As a magician's apprentice, you have been turned into an owl to give you the best chance of destroying the many dark creatures to be faced, and thus discovering the secret of cosmic strength. These dark creatures include piranhas, giant ants and mosquitoes. Extra weapons and invincibility periods can be collected. The technical details include 3 layers of multi-directional parallax scrolling, background animation, and different title and in-game music.

Eco Fighters, known in Japan as Ultimate Ecology (アルティメット エコロジー?), is an arcade game released by Capcom on the CPS-2 arcade system board on December 1993. The game is a horizontal shooter, where the player controls a ship with a rotating gun. As suggested by both its titles, the game has an "eco-friendly" theme. It was also developed by the same team from two Mega Man arcade titles, The Power Battles and The Power Fighters.

Satan's Hollow is a shoot 'em up arcade game released by Bally Midway in 1982, subsequently converted to the Atari 8-bit family, and in 1984 to Commodore 64.