Title: Up'n Down
Environment: MSX or newer, RAM 64KB, Musical Memory Mapper or PlaySoniq,
             Keyboard/Joysticks
Genre: Action
Language: English
Year: 1984
Publisher: Sega.
Developer: Sega.

Keys Mapping:

 F5           -  Reset game
 Cursor keys  -  Movement of player 1
 SPACE        -  Jump
 1~3          -  Select 1 player game level
 4~6          -  Select 2 players game level
 SELECT       -  Back to menu when the game is over
 RETURN       -  Replay a game when the game is over

Joysticks:

 Joystick 1   -  Movement of player 1
 Joystick 2   -  Movement of player 2
 Button 1     -  Jump

Notes:
- Conversion by GDX.
- Version updated the 2022-05-14 (Cleaner loading and extended I/O disabled
  for the OCMs)
- crc32=50691aa0
