Mini Tower Defense

Controls Pick a tower (arrow, cannon, frost) and tap an empty non-road cell to build it. Arrows hit one enemy quickly, cannons splash several, frost slows what it hits. Towers target the enemy that is furthest along the road. Start with “Start wave”; the next wave can only begin once the previous one is gone. An enemy reaching the end costs lives (10; big ones cost 2) and 0 ends the game. Tap a tower twice to sell it for 70%. Your score is the number of waves stopped.