I'm trying to keep this as short as possible. On my phone.
Kicking? No. She would have died. Decapitation severs the brain from the body. She'd still be alive but in agony. What use is a brain without a body?
So he can decapitate her? Kusanagi can pierce her and cut her?
That is a pretty bold claim. Have anything to back that up?
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She wanted him dead.
No, Jiraiya prevented Kabuto from striking at Tsunade with a surprise attack. At best, stalemate. At worst, Tsunade was defeated.