Flowers at scene where two week old baby was killed by car

The video begins with a thank you to the owner, followed by a discussion on the Spring classic playthrough. It mentions the game is not from Brown's open castle and features a small character speaking. The video concludes with a note on being ready for the same experience and an expression of being upset.

Who is the 'little guy' mentioned in the context of Brown's open castle?

What does the speaker mean by 'Just about ready for exactly the same'?