It is part of the "Developer" or specialized skin aesthetics.
You can find these links on the dev (Korblox) YouTube channel or shared by other MM2 creators who use them. cursors devy mm2
They met by a cracked fountain, two avatars standing awkwardly amid polygons and particle effects. The stranger’s skin was a custom, muted cyan; the tag: GHOST-9. No chatter; only the in-game emote of a nod. Devy mirrored it. Then, almost without planning, they began to run. Not at each other, but alongside — testing angles, timing jumps in tandem, sliding between stalls to see whether their movements synchronized or diverged. It was a conversation in code: hops, strafes, bait-and-feints. It is part of the "Developer" or specialized skin aesthetics
And the real game began.