Play it again
Suddenly, you hear your companion shout.
"Just drop it! Why are you doing this‽ Ow!"
Sounding like he might be in some difficulty, you run in the direction of
the noise. Soon, you find your companion, in a heap on the floor, nursing
what appears to be a bump on the head and thoroughly confused.
Curious that no one else has come to help and worried he might be concussed, you
look around for a first aid kit. Eyeing one in the corner, the less than
optimal lighting arrangement in this place gives it an interesting colour.
The colours themselves aren't very interesting, but their combined hex value is.
Some people just can't resist sharing.
The colour code for the combined blocks is #266920. The title of the puzzle
play it again suggests a replay is involved; your companion shouts to
drop it, suggesting the replay sharing site drop.sc.
Watching the replay, the
chat contains the words discoveries, elephants, lucid,
electricity, teleport and espionage, the first letters of
which spell delete.
Finally, the words team and tag are spelled out in the game using
Creep Tumors.
Answer: xgking