You goofed there. The Digging buttons are N for left and M for right.
Also, there's a bug in the game, sometimes, the ennemies are blocking the ladder, making you unable to progress in the game. Just because of that bug, I have to rate it low, since it's a game-breaking bug.
Nice Lode Runner -type of game there.
It is to hard to pass even a one enemy and to collect even more than 1 diamond.
I can't dig any holes. There's no way to get past the enemies.
do you knows the arrows keys ?
(better for azerty keyboard !)
not good but not bad