Launch a vehicle at a building and see how far through it you get. The only input that matters is a boost timed to land in a gold zone on a moving marker, and everything after that is physics: thirty structures of increasing stubbornness, coins paid out per impact, and repairs to make between attempts. Crash Tower has three vehicles with separate upgrade paths, which means a wall that stopped you dead an hour ago is worth coming back to. It is a demolition game and makes no pretense otherwise.