Drag me around — buddies stand on my top edge and ride along.
Grab a buddy and throw it. Poke the Live2D girl. Right-click
(or tap start) for the engine menu.
Notepad
BuddyEngine web demo
— every buddy runs sandboxed in a null-origin iframe cell
— one shared PhysX (WASM) world, one three.js scene
— this window is a physics platform