Choplifter

Choplifter (stylized as Choplifter!) is military themed scrolling shooter developed by Dan Gorlin for the Apple II and published by Broderbund in 1982. It was ported to Atari 5200, Atari 8-bit family, ColecoVision, Commodore 64, VIC-20, MSX, and Thomson computers. Graphically enhanced versions for the Atari 8-bit family and Atari 7800 were published in 1988 by Atari Corporation.
In 1985, Sega released a coin-operated arcade remake, which in turn was ported to the Famicom and Master System in 1986. "Choplifter" is one of the few games that first appeared on a home system and was ported to the arcade.
Gameplay.
In "Choplifter", the player assumes the role of a combat helicopter pilot. The player attempts to save hostages being held in barracks in territory ruled by the evil Bungeling Empire. The player must collect the hostages (described in the backstory as "delegates to the United Nations Conference on Peace and Child Rearing") and transport them safely to the nearby U.S. Postal Service building, all the while fighting off hostile tanks and other enemy combatants. According to the backstory, the helicopter parts were smuggled into the country, disguised as a "mail-sorting machine".
The helicopter can face three directions: left, right, or forward (facing the player). It may shoot at enemies in any of these directions and need not fly in the same direction it is facing. The forward-facing mode is used primarily to shoot tanks. The player must be careful to protect the hostages from enemy fire as well as avoid hitting the hostages with his own fire.
The player rescues the prisoners by first shooting one of the hostage buildings to release them, landing to allow the prisoners to board the sortie, and returning them to the player's starting point. Each of the four buildings holds 16 hostages, and only 16 passengers can be carried at a time, so several trips must be made. When the chopper is full, no more hostages will attempt to board; they will wave the helicopter off and wait for its return. Usually, each trip back is riskier than the last, since the enemy is alerted and has deployed a counter-attack.
If the player lands directly on top of a hostage, or completely blocks the building exit, the hostages will be killed. In the Apple II and Atari 7800 versions, hostages also die if the vehicle is not landed correctly (it is slightly tilted), being crushed as they attempt to board the chopper. While grounded, the helicopter may be attacked by enemy tanks, which it can shoot at only by returning to the air. Also, the enemy scrambles jet fighters which can attack the vehicle in the air with air-to-air missiles or on the ground with bombs.
Development.
Coming off a stint working for the Rand Corporation, Dan Gorlin initially developed "Choplifter" using an Apple II loaned to him by his grandfather. At first Gorlin imagined "Choplifter" as a 3D game, but switched to a traditional 2D game environment due to technical limitations.
The game was developed in six months. After Gorlin began experimenting with animating a helicopter on the Apple II, he added scenery, tanks, and planes, with the hostages added last. He stated that, as a story developed, "movie camera techniques seemed appropriate", including the final message "The End" instead of "Game Over". Gorlin's first demonstration to Broderbund was "too realistic, too much a helicopter simulation", and the company helped him make it easier to fly. The concept of rescuing hostages came about after Gorlin learned about "Defender", in which the player must protect people on the ground. Although the Iran hostage crisis ended the year before the game was released, Gorlin said "the tie-in with current events was something that never really crossed my mind until we published".
Gorlin would later revisit the 3D concept in a failed attempt to remake the game in the 1990s.
Reception.
Debuting in May 1982, the game sold 9,000 copies by June, appearing on "Computer Gaming World"s list of top sellers."II Computing" listed "Choplifter" seventh on the magazine's list of top Apple II games as of late 1985, based on sales and market-share data.
"Softline" in 1982 called the game "what may well be the first Interactive Computer-Assisted Animated Movie. A fusion of arcade gaming, simulation, and filmic visual aesthetics, "Choplifter" is destined to occupy a place in the software Hall of Fame". The magazine praised the animation and the helicopter's "subtle flight control", and concluded that seeing the hostages' "hope and excitement, their faith in you" made the game "hard to play. It hurts to see one of those lively people killed". In 1983 its readers named "Choplifter" fourth on the magazine's Top Thirty list of Atari 8-bit programs by popularity. "BYTE" called "Choplifter" "great fun". "Computer Gaming World", "Creative Computing Video & Arcade Games", and "The Commodore 64 Home Companion" praised the graphics and animation, the latter stating that "the little captives running across the desert almost seem alive".
The Apple II version of the game received a Certificate of Merit in the category of "Best Computer Audiovisual Effects" at the 4th annual Arkie Awards, and shortly afterward "Billboard" named it Computer Game of the Year. "The Addison-Wesley Book of Atari Software 1984" gave the game an overall A+ rating, calling it "a masterpiece". The book concluded that "the concept, graphics, and animation make this a delightful game".
In Japan, "Game Machine" listed the arcade version of "Choplifter" in the November 1, 1985, issue as being the most successful table arcade unit of the month.
Legacy.
"Choplifter II", subtitled "Rescue Survive", was released for the Game Boy in 1991, then remade for both the Game Boy and Game Gear as "Choplifter III" in 1994. An unrelated "Choplifter III" was released for Super NES.
Sega released a pair of spiritual successors without the "Choplifter" brand:
Programmer Will Botti cited "Choplifter" as a major inspiration for his 1996 game "Black Dawn".
inXile Entertainment released "Choplifter HD" for Xbox Live Arcade, PlayStation Network, and Windows on January 11, 2012, and Ouya in August 2013.