Spring

Spring is the main season and the one you start in. Spring is the easiest season compared to the others. After you finish every season, you are returned to spring and fight the Zomboss for that season. More information on Zombot Spring.
 * Although the Spring Boss (Zombot) is the hardest.
 * After the fight you are awarded with the Spring Trophy, which has a Zombot head on it. And the Cob Cannon.