Downhill Crash is a destruction game about momentum: you launch a dummy down a mountain full of destructible buildings, trees and props, and the score is how much damage you cause on the way down.
The dummy is a ragdoll, so the physics are grimly funny, and upgrades let you go faster and hit harder on subsequent runs.
Speed. Damage scales with how fast you're travelling, so taking the steepest line and upgrading speed does more for your score than aiming carefully.
Each run ends when the dummy stops; the game continues through upgrades that let you go further and cause more damage.
Yes — it runs in the browser with nothing to install.