First steps are reproducing the "Robot" demo which were spread around the net to show little of the capabilities of the VDP V9990 from Yamaha.
Demo File:For executing extract files on a CPC floppy or upload it on the M4 board and change directory into the DSK container (|CD,"ROBOT.DSK").Run file "ROBOT.BIN" and wait some time. At least a running robot through a forest will be shown. You should be able to move (left, right, jump up) the robot via cursor keys and fire a bullet with space.
https://www.cpcwiki.eu/index.php/File:Robot.dsk
[[File:ROBOT.dsk|thumbnail|Robot Demo Disk]]