Unlock Max as playable character:
Finish Pangya Festa as Cecilia to play as Max.

Unlock Arin as playable character:
Finish Pangya Festa as Kooh to play as Arin.

Unlock Cecilia as playable character:
Finish Pangya Festa as Hana or Uncle Bob to play as Cecilia.

Unlock Kaz as playable character:
Finish Arin's final storyline to play as Kaz.

Unlock Uncle Bob as playable character:
Finish Pangya Festa as Scout to play as Uncle Bob.

Unlockable caddies:

Unlock Tiki caddy:
Finish the first Pangya Storyline as Max to unlock the Tiki caddy.

Unlock Quma caddy:
Finish the first Pangya Storyline as Hana to unlock the Quma caddy.

Unlock Pipin caddy:
Finish the Tutorial to unlock the Pipin caddy.

Unlock Lola caddy:
Finish the first Pangya Storyline as Uncle Bob to unlock the Lola caddy.

Unlock Dolfini caddy:
Finish the first Pangya Storyline as Kooh to unlock the Dolfini caddy.

Arin's final storyline:
Finish the 1st storyline as all characters except for Kaz.
Then, wear Arin's Magic School Uniform.

Unlock Super Nintendo golf shoes:
Defeat Mochiro in a Chance match in Match Play mode.

Unlock Super Nintendo golf gloves:
Defeat Mayumi in a Chance match in Match Play mode.