im the original

This cat is pissing me off
I'm the original ⠀ ⠀ ⠀ ⠀ ⠀Starwalker

Out of all Undertale and Deltarune jokes this one is the most confusing one to understand for me

Have you played Deltarune?

I have not

The Original Starwalker is a character in chapter 1. One of the rooms (the room right before you can get the egg) is super long, you have to run from an enemy that shoots at you from the air. At the end of the room, there’s a bell that makes the bird-enemy-thing go away. Before leaving the room, you can go back and find the starwalker. Interacting with him gets this:
* These birds are pissing me off
* I’m the original ⠀ ⠀ ⠀ Starwalker
With about that spacing. If you get this, then he’ll appear later in various places in the game (the dungeon in chapter 1, joining the group in chapter 2, and I’m sure he’s in 3+4). Whenever Starwalker talks, it’s with the weird spacing. Eg, “I will also ⠀ ⠀join.”