In Macalania Woods, you encounter the creature who explains the butterfly catcher mini-game. Avoid the red butterflies and obtain the seven blue butterflies before time runs out. Everytime you hit a red butterfly it takes 1 second away from your time that you are allowed to catch the blue butterflies. If you catch all seven butterflies before time runs out, a new treasure chest appears. The chest will disappear if you leave the area, so don't forget to open it and claim your prize.
You can take part in this game in two areas. The first area is the Central area where you encounter the creature who explains the game, the second area is in Macalania Woods-North.
This mini-game gets more difficult as the story progresses, but the prizes keep getting better, too. At first, the timer is set to 40 seconds. Once you defeat the Spherimorph, it becomes 30 seconds. Lastly, once you gain control of the airship, the number of red butterflies significantly increases. Return to Macalania Woods in the airship and succeed in both areas to gain the Saturn Sigil, which unlocks the potential of Kimahri's Final Weapon.
Answered By: Shen Long