finished my orien week 2 weeks ago.
first are u female or a male?
you might need this:

- kain kurung hitam ( no corak )
- tudung hitam
- seluar sukan warna hitam
- baju sukan kaler putih
- kasut sukan

if u are male:

- tie
- formal wear.
- kasut sukan
- baju sukan kaler putih
- seluar sukan warna hitam

actually it's a tiring week from my opinion because my course has many students applied.
second, to go to Bahagian Pengambilan Pelajar for registration, you need to walk fast,
you walk, so u need water if u are not-so-strong-fellow. The registration is THE WORST AND THE MOST TIRING part.
But there's nothing too gross about orient week.
No kawad or enforcement instilled.

Good luck.
Uh, I hate orien week . XD