The guy had a bunch of Cheat codes on at the moment, and when he died fighting Larxene, he continued and ended up in this Purplish Pink room with Yellow Question Marks, and couldn't get out. I don't know if this is just a glitched room which is why it has the weird interior design, or if it was intended to be used with that interior room design.

Might have been:

A. Test room

B. The game glitched from too many codes and brought some unused textures into the CO floor room

How does one die with cheat codes on ? o.O

How does one die with cheat codes on ? o.O

He wasn't using Cheats to have Inf. Health or Max Strength.

Most likely a test room.  My friend was in a similar one when he was doing beta game testing for one of the kh games.  

Most likely a test room.  My friend was in a similar one when he was doing beta game testing for one of the kh games.  

For what KH Game? And who is this friend of yours?

For what KH Game? And who is this friend of yours?

 

Well his  name is phil.   He doesn't hang out on this, but has been a game tester for Squenix for a good while now, it helps that he speaks Japanese

We assumed it was KH3, but must have been 1.5 'cause the game was announced a year or so after he was sent the disc to try.  

Welp, my creepypasta is a little more plausible now. 

Pretty trippy, though my guess is that it the game glitch occurred when trying to reload Castle Oblivion.  The room looks exactly like Castle Oblivion's main halls, if you look closely at the shape, only the walls were colored differently.  That's just my guess, at any rate.  Either way, I think that's pretty crazy!

Well his  name is phil.   He doesn't hang out on this, but has been a game tester for Squenix for a good while now, it helps that he speaks Japanese

We assumed it was KH3, but must have been 1.5 'cause the game was announced a year or so after he was sent the disc to try.  

Oh ok then. Is he still testing for Square?

The Riddler in his early days.

Oh ok then. Is he still testing for Square?

 

Officially he's still listed as a tester/employee, he hasn't been sent any new games in a while