There is a repeatable ‘Hunting Contract’ mission for each color of snake. All the missions are for 1000 kills.
|Green Snake||level 17||Copy WP to Clipboard|
|Purple Snake||level 18||Copy WP to Clipboard|
|Brown Snake||level 19||Copy WP to Clipboard|
|Coral Snake||level 20||Copy WP to Clipboard|
|Black Snake||level unknown||a few rumors, probably need to ask a local or post the question here|