Title: Choplifter
Environment: MSX or newer, RAM 64KB, Musical Memory Mapper or Supersoniqs,
             Keyboard/Joysticks
Genre: Action
Language: English
Year: 1983
Publisher: CBS Inc, and Coleco Industries, Inc.
Developer: Coleco Industries Inc. (Licensed by Broderbund Software Inc. &
           Sega Inc.)

Keys Mapping:

 F5           -  Reset game
 Cursor keys  -  Movement of player 1
 SPACE        -  Shooting
 N            -  Helicopter orientation
 1~4          -  Select 1 player game level
 5~8          -  Select 2 players game level
 RETURN       -  Start the game again
 SELECT       -  Back to selection menu (when game over) 

Joysticks:

 Joystick 1   -  Movement of player 1
 Joystick 2   -  Movement of player 2
 Button 1     -  Shooting
 Button 2     -  Helicopter orientation

Notes:
- Conversion by GDX.
- Version updated the 2022-05-14 (Cleaner loading and extended I/O disabled
  for the OCMs)
- crc32=200dfea6
