Unlock Duel Coat:
Get from Crowler after you beat a few times.

Unlock Hawaiian Shirt:
Get from Atticus after you beat a few times.

Unlock North Academy Uniform:
Get from Chazz after you beat a few times.

Unlock Academy Jersey:
Get from Fonda after you beat a few times.

Unlock Black Uniform:
Get from Chazz after you beat a few times.

Unlock Yellow Uniform:
Get from Professor sartyr after you beat a few times.

Unlock Stuffy Collared Shirt:
Get from linking With Nightmare Troubadour.

Unlock Blue Uniform:
Get from Dark Zane after you beat a few times.

Unlock Kaibaman Jacket:
Get from Kaibaman after you beat a few times

Unlock Titan Coat:
Get from Titan after you beat a few times.

Unlock Suit:
Get from Chumley after you beat a few times.

Unlock Amazon Disk:
Get from Taina after you beat a few times.

Unlock Alchimy Disk:
Get from Banner after you beat a few times.

Unlock Vampyer Disk:
Get from Camula after you beat a few times.

Unlock Sea Disk:
Get from Admiral after you beat a few times.

Unlock Dragon Disk:
Get from Kaibaman after you beat a few times.

Unlock Pharo Disk:
Get from Abidos the Third after you beat a few times.

Unlock Three Sacred Beasts:
Get from Kagemaru after you beat a few times.

All you need is a yu-gi-oh! GX Spirit Caller, another ds console, a yu-gi-oh wc 2007 and nasty cards on gx. Begin the game in wc 2007 and go to shop. You will have 1500 DP, and buy what you want. If you want some cards, trade them. When you want more begin a new game on wc 2007. And there you go, easy cards.
P.S. If you don't care about wc 2007(like me)you are like me!!!!

After getting your spirit, you shpuld be able to duel Yellow Prof at sundown. After beating him 5-15 times he will swipe you a yellow uniform.

In order to acquire a spirit you have to beat the card that matches the spirit with your own spirit monster and also bring his life points to zero using your spirit monster. This does not gaurantee that you will acquire the spirit it will only increase the chances of you acquiring it. Hopefully this tip will help everyone out.

About the making time go by faster is that other dude was wrong you only go to the east side then the bottom side, you SHOULD go from the slifer dorm to the top. Not insulting the other guy just correcting him.

Be on the map right outside of your dorm. Ok, now click on the Mountain looking thing on the bottom screen in the upper right-hand corner. Now, go to the very top place. Now go to the vary bottom place(where Ra Yellow and Girl's Blue Dorm is). Now repeatedly do that until the day is over. Then go to your dorm, Sleep, Go Outside, do it again.

When you go to the Academy's Study Hall, You have the option of doing puzzles or reading tutorials.
If you read all the tutorials (or atleast open them once) the professor will congradulate you on doing so much *reading*, and will give you a couple free cards.

In the game, you can do about 2-3 duels per day before having to go dorm. But there is an easy way to stay up past the time, so you don't have to worry about traveling late at night.

After being on the island for about a week, Crowler will call you into his office and tell you that somebody has been terrorizing the Obelisk Blue Dorm students, and that he has selected you and Jaden Yuki to put a stop to it. The person terrorizing them only comes out at night.

That night after hearing about your mission, go into your room. As soon as you enter, Jaden will come and tell you that he is ready to go.
Now instead of progressing the story line, you can just stay out and duel some of your fellow Slifer Red buddies.

I did this and now I am level 10!
And whats even better, is that the card shop is open all night, so duel away to your hearts content so you can get only the best cards early in the game!

Because when you level up, you unlock new card packs occassionally.

Thats all, I hope it helps, :)
~moon_lit_shadow

P.S. Sorry for it being long... ~_~