Wait! Are These Axolotls Doing a Puzzle Hunt?

MiniTardigrade, SquishmallowsUnited

Puzzle	Incorrect guesses	Unlock time (JST)	Time to solve	Solve time (JST)
Side to Side	2	Dec 6, 07:00	5h11m	Dec 6, 12:11
A Silly Crossword II	0	Dec 6, 12:11	27h4m	Dec 7, 15:15
when the puzzle explains the joke in the video	0	Dec 7, 15:15	52m13s	Dec 7, 16:07