Shadow basically caught Espio at a bad time (maybe meditating?) and decides to test the extent of Espio's ninjutsu.
Whoever Espio's sensei was, s/he sure didn't teach him how to defend oneself from an irresistibly sexy hedgehog X3 Shadow is a very skilled opponent… he does everything with only his left hand, ohohoho~
I think my blood looks more artistic than usual, hmm…