Coming to Town! is the first stage in Jolly St. Nick.
In the beginning, Those Guys will keep spawning every few seconds with an occasional Baa Baa in-between, they will keep spawning until the enemy limit is reached. (Enemy Limit in this stage is 7)
When the base is hit, Doges, Snaches and Jackie Pengs will also spawn until the enemy limit is reached.
Use Cow/Giraffe cat or any other fast cat to rush the base and get the timed rewards.