The Rainbow Line's connection to darkness as seen from ToQger Episode 19-29

Shadows use the ToQ6's drill setting up later, when Schwarz steals it again in 29.
The parallel between them connecting and them not connecting.

19 Comedy that actually works unlike most Toei Toku nowadays.

20 Switching with evil
Shadow and ToQger vs Shadow
The bubbles falling in the sunset look like tears.

26 Bathouse bribery
Price leading and how Wal-Mart hurt the world.
OOO

27 Change in direction. Mood?

28 Right uses his inner self to attack
Hikari is the mysterious one that never reveals who he is representing the secrets of the ToQgers.

29 A member of Shadow and ToQger finally join sides in a Gaim-like manner.

31 Being exposed to too much darkness making them dark