Use T to toggle keyboard controls, which is arrow keys to move and spacebar to drop a bomb. On touchscreen mode, drag the crosshairs and press the red button to drop a bomb. Grass will only have dirt underneath. Dirt can only have dirt or stone underneath. Stone can have stone, iron, diamonds, or lava underneath. Lava, when exposed, deals damage every second. Iron is worth $1 and diamond is worth $5.
I made this 100% by myself. No help, no nothing. All art is custom-made. Slightly inspired by digging master and Minecraft. Oh btw update at 10 ❤️s