The mode where you have a pink circle around you s triggered by countering an enemy attack (How you got bug fragments in 3)
I "think" that it doubles your next attack
EDIT: It also appears to transfer to your next battle if you deleted the last enemy with a counter
if they get permission from 4j (the studio who helped put minecraft on consoles), they could put the console edition tutorial worlds in the game, as seeds
and i mean all of them (if not, maybe a few highlights, like TU1, TU31, and TU69)