While Sonic 3D Blast is the North American title, Sonic 3D: Flickies' Island is the name under which the game is more widely recognized globally, especially in Europe and Japan. Given that Speedrun.com encourages using globally recognized names for clarity and consistency, it would be more accurate to list the game as Sonic 3D: Flickies' Island rather than Sonic 3D Blast.

https://store.steampowered.com/app/34278/Sonic_3D_Blast/

I would say how it is named on steam lends more to how it is globally recognised.

And I'm someone from where I played it as flickies island on cartridge back in the 90s.

It can be still named like "Sonic 3D Flickies Island/Blast" or something, but I dont know

It should be called that

it should be called Sonic Jam 6 :)

wat???