How do I get to the "secret ending"?

[earnest nest]

In so many guides,they said that I need to get the 100% of the game but what specifically? 100% of the challenges? Complete all the collections? Both? etc

[upbeat axle]

uhh, there is no secret ending 😄

the idea of those clickbaity titles and their "secret ending" is just the final House Cup cutscene

[earnest nest]

Well,I know it is not like a "secret ending"😂,it's what you said,but it's necessary to get the 100% of the game?

[upbeat axle]

nope, just be level 34 and the quest becomes unlocked, thats it

[earnest nest]

Ok,I'm level 35 and I have the last main mission left. Thank you😊