All you have to do to get the 2nd course is get a perfect score on the 1st course when you finish your game and should say you can now play on the 2nd course of mini-golf! It doesn't matter what character you use but you have to be in one player mode without any computer players.
In-game reset
Press Start + Select + R1 + R2 + L1 + L2 during game play to restart.
Loyalty
When you use a certain player or caddy many times, you will build loyalty for that character. However, this loyalty is only useful in tournament mode. Choose your characters wisely.
Mini Golf 2
Score 120 or more in Mini Golf 1.
Play as BEIDA
Defeat REIRA.
Play as Beida in versus mode (Japanese version)
Defeat Reira.
Play as BURONZO AND SHA-KU
Defeat MASASHI AND SHIRUBIA.
Play as Buronzon and Sha-ku in versus mode (Japanese version)
Defeat Musashi and Shirubia.
Play as Dogi in versus mode (Japanese version)
Defeat Purin by 4 UP.
Play as DOGI IN VS. MODE
Defeat PURIN BY 4+.
Play as Farukon and Ni-na in versus mode (Japanese version)
Defeat Marion.
Play as FURUKON AND NINA YOU
Defeat MARION.
Play as GARU-DA
Defeat SAKURA.
Play as Garu-da in versus mode (Japanese version)
Defeat Sakura.
Play as GURORIA
Defeat SHA-KU.
Play as Guroria in versus mode (Japanese version)
Defeat Sha-ku.
Play as HITOMI AND SAKURA
Defeat PURIN AND GONZOU.
Play as Hitomi and Sakura in versus mode (Japanese version)
Defeat Purin and Gonzou.
Play as JAK
Defeat JAK.
Play as KU-GA AND REIRA
Defeat GURORIA.
Play as Ku-ga and Reira in versus mode (Japanese version)
Defeat Guroria.
Play as MARION
Defeat BURONZO.
Play as Marion in versus mode (Japanese version)
Defeat Buronzon.
Play as MUSASHI
Defeat GARU-DA.
Play as Musashi in versus mode (Japanese version)
Defeat Garu-da.
Play as RIN
Defeat HITOMI.
Play as Rin in versus mode (Japanese version)
Defeat Hitomi.
Play as RO-ZU
Defeat KU-GA.
Play as Ro-zu in versus mode (Japanese version)
Defeat Ku-ga.
Play as SHIRUBIA
Defeat RIN.
Play as Shirubia in versus mode (Japanese version)
Defeat Rin.
Price Reduction
Enter "MKJEFQ" as a password.
Safe shot
Notice how your caddy is on the fairway and not next to you sometimes. When you notice your caddy is not next to you, scan down the fairway. Wherever your caddy is standing, this is a signal for a "safe shot". Aim for your caddy to avoid water or sand traps. However, this will happen only once a hole and not on every hole.
Unlock Costumes
To unlock extra outfits play as the same character four times in tournament or verus mode, this will then also unlock outfits for you to buy in the shop. Note: The extra outfits unlocked in the shop can be won by beating the character in HARD VS mode. It will also be cheaper as most characters can be beaten by using 2-4 pitch hit coupons while outfits to be bought range from 5000 - 15000 points.