Battle Squadron

Battle Squadron is a vertically scrolling shooter for the Amiga and ported a year later to the Mega Drive console, for one or two players. It is a sequel to "Hybris". The game was later ported to iOS devices (2011), Android (2012) and in 2013 also to AmigaOS 4, Windows, OS X and MorphOS.
Plot.
Taking place many years in the future in another star system, a century long war is waging between the Earth Defense Fleet and the Barrax Empire. Two Earth Defense Commanders, Lori Bergin and Barry Mayers, were returning from a research and destroy mission regarding the latest Barrax technologies on planet Urania, when suddenly a Barrax cruiser materialized behind them, brought their ship in and took the commanders hostage on planet Terrainia. The player's mission is to rescue the Commanders and eliminate all Barrax threats in the process.
Gameplay.
"Battle Squadron" supports both mouse and joystick controlled play. The game is played from the perspective of elite fighter pilots of the Earth Defense Fleet, known as the Battle Squadron sent to rescue two human agents, Commanders Berry D. Mayers and Lori Bergin, from the clutches of the ruthless alien empire, known as the Barrax. The player's fighters carry unlimited projectile weaponry and a finite number of Nova Smart Bombs. Players acquire weapons by shooting down Barraxian Artillery Gunships which carry weapon Power-Up icons. Weapons include the Red Magnetic Torps, the powerful Green Emerald Laser, the two-way firing Blue Anti-Matter Particle Beam and the sideways firing Orange Magma Wave. Other pick-up items include Barraxian jewel caches marked by small green X's which are worth 1000 points each. The player has the option to increase the number and speed of enemy bullets therefore altering the game's difficulty.
Notable features of the game are relatively big sprites (with Predator-esque cloaking effects applied to a few) and numerous weapon upgrades (supposedly 25 in total). Barraxian opponents consist of ground installations (generally gun turrets and launch platforms), ground vehicles, aircraft and numerous genetically-engineered living weapons.
Specific enemies of note include: