This guide will tell you how you can get Bombastic Bling and outfit in Robloxian High School. It will also provide you with two methods to get a key, that can be used to enter the portal.
First, you will need to get a Key. There are 2 methods of getting it, the first method takes some time but everyone manages to get the prize using it. The second method takes less time but you need to have fast internet for it.
For the first method, you will first need to go to the Library. 
You will find six seats there and you need to sit in any one of those seats. 
After that, wait until all the periods are over. 
Once all the periods are over, you’ll get a notification of a Class Titled “My Home”, wait for it to start. 
Once it starts, you will need to wait until it ends. Then jump and sit again on the seat that you were on. 
Now wait for a couple of seconds and the key will spawn behind your seat.
For the second method, you’ll need a Vip Server. It is free for Robloxian High School, so you can get it for this method. After sitting in this chair before the time hits 08:00 AM, you need to stay seated and a key will spawn in a couple of seconds. 
Enter the room beside brown sofas. 
Once you’re here, you need ton use the key and enter the Portal. 
Now you will need to reach the end of this obby, go to this location bypassing all the obstacles. 
Once you’re here, you will need to fall into the Void. After getting teleported, touch the Bombastic Bling to get it. 