The first custom episode that you've played.

[Okton3999]

Super Boogaloo World, I remember that YouTube recommended the trailer.

[super merio odysey]

Hmm, my memory's a bit hazed. But if i renember correctly, its gotta be Delightful Adventure.

[KurttheKing]

Return to Dinosaur Land (not sure if that was the actual name, it came with X2 Beta 3), and if that's too vanilla, Mario and the Ancient Stars

[Ness-Wednesday]

Return to Dinosaur Land (not sure if that was the actual name, it came with X2 Beta 3), and if that's too vanilla, Mario and the Ancient Stars

Doesn't matter how vanilla an episode is. Just the first episode you played besides Invasion 2 and Princess Cliche.
Anyway, it brings me joy when newer members play the legacy episodes, especially Return to Dinosaur Land.

[archived_acc]

I think it was Super Mario Star Expedition by Chad but I can't remember...

[Alucard648]

For SMBX1, Invasion 2. For SMBX2, Demo Stages.

[Mati]

The first episode I played, as well as a lot of other players from Poland, was "Panika hydraulika" by Flower35

[PizzaNoob]

Luigi’s Lost Memories