I say underflip 9 looks like a misty 90 to frontflip 450 to 360 which is an underflip 5 with an extra reg 360 on the end so I say its an underflip9 its not a d-spin though he throws it forward d-spins are thrown back
well winterkid33 that made sense except your wrong...underflips are thrown up the mountain not down but im sure thats what you ment considering that this particular thick is in face an underflip 9 althought i see no evidence of the last 180..or a landing still sick but you need a better angle and more exposure