Start a room on the TV. Everybody goes to the address (or scans the code) and types the 4 letters. You're a mole. Up to 8. Two more can play on the TV's keyboard, and you can add computer moles.
Drag on the left side of your phone to move. Moving into dirt digs. Moles hang on to dirt: walls, ceilings, whatever. In a big open cave with nothing to hold, you fall. Rock can't be dug.
Last mole digging wins the round. Dead? You're a ghost: float around and say BOO (it rattles people).
CLAW knocks moles back (into a lake, maybe), breaks planks, digs fast. DIRT spits out the dirt you've dug: plug a tunnel, dam a lake, bury somebody. CAVE-IN drops the ceiling in front of you (on whoever's under it. Maybe you.) ITEM uses what you dug up. MOCK laughs at people: you can't move while you do it.
Two up top, with names. One's water, one's pee. Dig into one and it comes down your tunnel (and theirs). Hold your breath.
Buried crates (cage traps, planks, bats in a jar, worms, a sack of baseballs, bowling balls). Cinder blocks: dig out what's under one and it drops on you. Bat caves. Pockets of balls that pour down when you dig under them. Opossums: claw one and it plays dead and drops opossum blood. Pop your head out top and the farmer whacks it. And some rounds Dirt Pam shows up and decides you're dating. She means well. Pass her to somebody else.
He's at the bottom, at his desk. Go see him and press DEAL: burst a lake, bats, bury the leader, one more life, get huge... Pay with your blood (health), opossum blood, or cruelty: mock two moles while they're in trouble and you get one free.
Between rounds, spend points on STR DEX CON INT WIS CHA, SIZE and LENGTH (little but long), and gross stuff: ARMOR, YUM YUM JUICE (a grease trail everybody slips in), STINK, BLADDER, FLEAS, TAIL, BLUBBER, BOILS, BURP, BUCK TEETH (chew rock).
Once a round everybody drops into first person in the tunnels you dug, split screen, like Land of Lore. Arrows to step and turn (forward into dirt digs). CLAW, YELLOW (pee in their eyes: they can't see), THIN MILK (ghosts can't cross it), DIRT (a wall). The dead are the ghosts.
After a minute the earth shifts (cave-ins). Then the lakes leak. Then the Reaper gets up from his desk. He goes through dirt.
WASD + F claw, G dirt, H cave-in, R item, T mock, Y deal. Arrows + J K L U I O.