This duck is probably the easiest to find. because it’s been in the game since launch (i think)
the second duck can be found in Kai with a Flag
the third duck can be found in Circuitfreezer. It’s by the cabin with a snowman, close to the gate and campfire.
the fourth duck can be found in Dodgeball. It’s behind the lockers in one end of the map.
just follow this map and try to have fun, somehow~!
as the texts suggests, you’ve now unlocked a special duck themed skin and aura. Go ahead and show it off! You’ve (maybe) earned it.