In the game, he accidentally goes into the Forbidden Woods, where Link must then go in and save him upon the Deku Tree's request. While searching for Makar, Link will go through many different puzzles, and find new items. Finally, Link will find Makar in a room, where suddenly, Kalle Demos, a huge plant like creature comes up and eats Makar. Link must fight the creature to save Makar.
Later in the game, Makar will become Link's partner, whom you'll be able to control. In the game, Makar can fly, and also produce seeds to make trees grow out of the ground. During this, Makar realizes that he is a Sage, and gives the Master Sword more power to defeat Ganondorf.
Super Smash Bros. series
Makar was a sticker in the Wii video game Super Smash Bros. Brawl. When placed on on a character, it raises that character's slash resistance by 4.