PMD: explorers of the sky: UH, HUH!?

so, uhm… i played explorers of the sky, and… something weird happened…:

I was fighting a rotom in midnight forest, then a beedril popped into the room. suddenly, the screen faded black, exept the rotom stayed there on the screen. a message popped up, something along the lines of:

“that reminds me, of a friend, a long time ago…”

and after that, the rotom imediatly went to endure status, and the screen came back to normal.

i’m realy confused. does anyone know what this means?..

Maybe this the part of storyline i guess
i have played pmdsky all main story and a little after it . but never got this.

erm, i’m in the post story. it was in midnight forest, RIGHT before aegis cave… o-@
it was weird…

I know what happened. That Rotom used a Gone Pebble and the effect of that happening made the screen black and Rotom said “It reminds me of a friend” and it ended. I know about this because i threw one at a Hitmonchan and this happened.

I remember using one before when I was about to die. Gone Pebbles do that.