The crowd-runner the ads promised, for real — third-person, straight down the lane. Steer your squad through the gates (grab the "+40", do the math on "×2" vs "÷2") while it mows down the zombie horde, shoot the pin to dump lava on them (not on yourself), and bring a big enough army to break the giant boss zombie. 30 levels, upgrades that are conveniences rather than paywalls, and an endless mode with a global leaderboard.