In S1E5, Kai hallucinates multiple holiday mascots, such as elves, gingerbread men, and Santa Claus. This implies there is Christmas, a LEGO Jesus Christ and capitalist influence on holidays in the world of LEGO Ninjago1yr ⋅ montgomery2016 ⋅ r/Ninjago
In S2 E2, Cole is seen wearing a pot on his head, making him a pothead. This is a subtle reference to Cole’s use of marijuana.1yr ⋅ montgomery2016 ⋅ r/Ninjago
