Challenge - Finish the level in less than 1m20s Notice: Fast forward gains double speed to the game, but normal speed to the timer. 0:00:01 - Pause the game immediately after start the game. 0:00:02 - Use run ability to the zombie can kill 1st and 2nd attackers. 0:00:04 - Clear all door and keep the zombie running. 0:00:14 - Evolution the zombie to an overlord and give the jump ability to the overlord can send the following zombies to jump over the wall. you can pause the game for selection easily. 0:00:18 - Give run ability to the following zombies.

Challenge - Finish the level in less than 2 minutes 0:00:01 - Pause the game immediately. 0:00:02 - Evolution the 3rd zombie to overlord and assign jump ability to send other zombies to the upper floor on the left. 0:00:06 - Clear the path. 0:00:10 - Explode a zombie to destroy the destructible floor. 0:00:14 - Rescue other zombies. 0:00:15 - Evolution the zombie next to the rescue door to overlord redirect to the right and assign run ability. (and other zombie nearby) 0:00:24 - Evolution a zombie to overlord redirect to the right and assign run ability. (and other zombie nearby) 0:00:28 - Destroy the van. 0:00:31 - Evolution the zombie next to the rescue door to overlord redirect to the right and assign run ability. (and other zombie nearby) 0:00:36 - Explode a zombie to destroy the thick door. 0:00:40 - Evolution a zombie to overlord redirect to the right and assign run ability. (and other zombie nearby) 0:00:47 - Evolution a zombie to overlord and explode to destroy the ceiling. 0:00:52 - Evolution a zombie to overlord and assign jump ability to send other zombies to the upper floor on the left. 0:00:59 - Evolution the first arrive zombie to overlord and assign run ability.