GREEN BERET
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Converted by Jean-Marie

"I've managed to speed up the scrolling of Green Beret through various code optimizations.
It's still slow, but less painful to watch I guess. A timing measured from offsets 23E8h and 2450h (beginning & end of scrolling routine) shows the following results : 
     - Regular version : 1589 milliseconds
     - overhauled version : 836 milliseconds.
Results vary depending on number of enemies on screen, tiles set to move, and whatnot. I had to sacrifice the music to gain a few cycles. You can set it back but it will still be turned off during scrolling though.
Merry Christmas!"

More informations and DSK version : https://www.cpcwiki.eu/forum/games/converted-gx4000-cpr-the-topic/msg223877/#msg223877


Controls
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While playing:
J1B1 = Knife
J1B2 = Fire
Pause button = Pause

While game is in pause:
J1B1 = Resume game
J1B2 = Resume game turning music on/off
Pause button = Quit current game


Modifications for the GX4000 version
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     - SCROLLING ACCELERATED (main goal of this new version)
     - Titlescreen removed (no loading time anymore on cartridge)
     - New main menu instructions
     - Ingame keys remapped
     - Input of the name in the high score table patched to be set using the joypad
