Phones join with the 4 letters on the TV (or the QR code). Type a name and pick a hat: a beanie, a cowboy hat, a propeller cap, a traffic cone, a bucket, a paper crown, a chef hat or a big bow.
Left thumb walks (and climbs ladders: push up). Right side: JUMP, USE and DOOR. Walk off the side of the building and it turns. First one to touch the thing on the roof wins, and everybody else gets 30 seconds.
The building is a maze. The plaque on a door says where it goes: ^ 14 goes up to the 14th floor, v 6 goes down. A number like 7B is somebody's apartment. Don't go in there. (You'll go in there.) Locked doors: kick them. A chain? Kick harder.
Most doors, somebody on the other side comes with you (sometimes a whole bowling team). Your gang follows you everywhere and takes hits for you; get shoved and one of them switches sides. Everybody who makes it to the roof with you is a point.
A couple of big dumb ogres stomp around every building. If one sees you on its floor, run: they throw people. Don't shove them. And some apartments have one in the bath.
Smash crates for barrels, pianos, mops, a chain lock, a leaf blower, a bag of pigeons, spring shoes and an elevator pass. USE drops it on whoever's below you. Whoever's behind gets the good stuff. Empty hands shove.
WASD walk, F jump, G use, E door. Arrows, L jump, K use, O door. Enter skips. Esc pauses.