From Call-APPLE:
Late last night, Lee Fastenau announced a little Christmas present for the
Apple II world in the Call-151 group: the Game Boy version of Tetris for the
Apple II, complete with all of the original screens and the source code for
the game as well. This version of the game runs not only on original Apple
II hardware with 48K of memory but will also run in Emulators as well.
Game controls for the game:
A – Turn Block Left
S – Turn Block Right
J – Move Block Left
K – Drop Block into Place
L – Move Block Right
Downloading the game and the source code
You can download the Game Boy Tetris for the Apple II and the source file
from the following link:
https://www.mediafire.com/file/idnz38jba6kgsof/Game_Boy_Tetris_for_Apple_II_%2528src_incl%2529.zip
https://www.callapple.org/software/game-boy-tetris-for-the-apple-ii/