Does anyone know this anime?

I watched this around 2005 (maybe earlier). It was an anime show about a highschool girl with long brown hair tied up in a high ponytail. I think from memory she had a necklace/amulet that would randomly transport her into different dimensions/worlds, and she’d have to fight monsters, I could be wrong though. She definitely did randomly transport to dimensions and fight things though and I think she used a stick or staff? before she could go home.

Extra details I remember: • She rides on the back a motorbike in the intro/opening for a bit, in-front of a sunset. • Each dimension felt different, with different creatures? To fight. • She’s definitely a teen, not a little kid. • Not Magical Girl classic stuff (like Sailor Moon), more “strange worlds” vibe. Like she knew combat with the stick/staff.