Choplifter! is a side-scrolling action/arcade game that puts the player in command of an attack chopper. The mission: Go behind enemy lines and rescue up to 64 hostages. However, the chopper can only carry 16 passengers at a time, so several rescue attempts must be made to rescue everyone. Be careful, though, because tanks and enemy aircraft will try to stop you - and they won't stop shooting while the rescuing of hostages is going on. Originally released for Apple II home computers, Choplifter! was later ported to arcades in a rare instance of a home version receiving a later arcade release.
However, while the basic gameplay stayed the same, alterations to the original version were made. The game now consists of four different levels, with new settings such as sea, caves, and city rooftops added. Each level contains only 24 hostages to rescue, with at least 20 needed to complete a level. The chopper can also carry only 8 passengers at a time.
A fuel system was added, where a unit of fuel gets refilled for each hostage returned safely. A scoring system was also introduced. Additionally, new stationary ground-to-air missiles were added as enemy units.
The Famicom and Sega Master System versions are based on the arcade version. The Sega Master System has six levels, with some changes to the gameplay and scoring system.