Pivot Platform Help

There’s a point in the project I’m working on where the protag must engage in a shootout on a platform with a sphere as a fulcrum. How can I join the plane and sphere so the plane can still rotate in any direction without sliding off?

I’m having trouble understanding your exact goal here, but:

You can attach the platform to the sphere with a FixedJoint, which will keep the platform attached to the same point on the sphere as it rotates, but the platform will rotate with the sphere to keep relational orientation.
If you’re wanting the platform to remain upright while following a point on the sphere (think Super Mario platforms rotating around a wheel), then I don’t know the best approach for this but I would try setting “Constraints” to “Freeze Rotation” on the platform so it maintains a fixed rotation and attach it to the sphere with a HingeJoint that can rotate freely.