Board Thread:Theories and Rumors/@comment-26069050-20190516215047/@comment-26069050-20190529065122

Clutch Powers was mentioned in episode 10, you know.

Since Clutch is officially canon to Ninjago without ANY doubt whatsoever, Ninjago is technically connected to the Space themes, (due to Space Police 3 appearing in Clutch's movie) the Town theme and the Castle theme. (both due to the Time Cruisers crossing over with all of the above themes, save for Ninjago)