Super Buddy Kick 2 is a ragdoll physics sandbox: a buddy character, a collection of weapons and tools, and no objective beyond seeing what the physics does.
It belongs to the stress-relief genre, and the appeal is entirely in the ragdoll simulation — the buddy reacts convincingly to everything, which is what makes experimenting worthwhile.
No — it's a physics sandbox. Coins from damage unlock more items, but there's no win condition.
It's cartoon ragdoll physics rather than realistic violence, though the premise makes it better suited to older children.
Yes — it runs in the browser with nothing to install.