Thanks you so much for your works ker ! I've downloaded your modified sources on your github and done some modifications in the code : -in PuyoCommander.cpp I've changed the default name by "GCW-ZERO" instead of the name of the user (root)
-in GameControls.cpp I've changed the default controls it's now A to turn right and B to turn left, and nothing mapped for the player 2
-in IosImgProcess.cpp I've set the fullscreen bool false because it's useless
-in PuyoCommander.cpp I've remove the option menu to switch fullscreen on or off
I have put the Downscaling flags in the .desktop and the games works very well !
the opk I've made : https://www.dropbox.com/s/e59e3ldnefggjkt/Flobopuyo.opk?dl=0
PS : the game work only with the latest firmware because of the downscaling option