You will want to look deep into Projectile Movement Component.
The basic setup for this effect would look like this, you’ll need Bounce and Initial Speed.
vid: https://i.gyazo.com/fc016f7ab34fa952000c795f4a38cfee.mp4
There’s **no physics simulation **on the sphere. In the Construction Script of the projectile you set the velocity which is actually interpreted as *direction *by the above-mentioned component providing there’s a value greater than zero set as *Initial Speed *(see above). This makes it fly off in a completely random direction (which ideally should be improved with some surface normals math)
The spawning is pretty much the same:
The trails are done here with debug points just to visualise trajectory - look into particle - ribbon (?) I think, to do it right.
Hope this gets you started.