Jazz and Spaz are just "the" jazz2 characters..
Spaz has his double jump to come high when he jumps and Jazz has his stomping fist to stomp very high, but Lori is a mix of the two rabbits; she can fly with her ears and she can kick... but I dont get her very high in the sky like you can with Jazz and Spaz. So she cant do tests, singleplayer packs and maybe also just normal-selfmade battles or you have to make it able for Lori too... most of the time it gets too simple for Jazz and Spaz then.

So she cant jump high enough (you got to practice for a time but I still cant do it..) than she has a sort of kick like Spaz has but if she kicks she comes not very far.

And the helicopter bug sux too (big time)

and you are also right about her fur, it gets very mixed up and stuff.. there is still yellow in her fur even if you dont want to, you cant remove it..

When I (my brother actually) bought JJ2 tsf I tought: "WOW a girl rabbit! cool!" but when I tried her out she wasnt very usefull.