Obscure: The Aftermath

Hint: Hacking the door outside of the Delta-Theta-Gamma Party:
Use the code "MOZART" to get in while playing as Mei. This will be the first door you discover. To find it, have Mei search with the decryption device.
David Oester.

Hint: Hacking the door to get to Jun:
Use the code "FREUD" to open the door and get to Jun. This will be the second door you discover.
David Oester.

Hint: Hacking the computer for dynamite ingredients:
Use the code "EINSTEIN" to hack into the computer and get the ingredients for dynamite. Note: When you break the soda machine in the basement (first level) of the hospital, keep the soda. It is the last ingredient you will need.
David Oester.

Hint: Safe code:
The code to the safe is "1873". You can find it on the desk in the room you enter from the window. Examine it closely with the woman.
ygtic ibta tehmbrpa.

Hint: Delta Beta frat house code:
The code to unlock the door at the top of the stairs in the Delta Beta frat house is "PICASSO".