I’m by no means a C. Viper expert—in fact, she’s one of my least-used characters in the game—but with just a half an hour of tooling around in Practice Mode, I managed to find a heavy-hitting yet somewhat unreliable and completely impractical combo. I’ll add important notes below the combo.
j.:h:, j.:s:¹, , :h:, :s: (first hit) ×× :qcf::h: ×× :s: (on TK hit)², j.:h:, dj.:h:, j.:qcb::s:, , :h:, :s:, j.:h:, dj.:h:, j.:qcb::s:, [any Hyper Combo]³
¹ You can get two air hits off if you air-dash toward your opponent. If you have good timing, you can even just jump into your opponent and get the hits off during your descent… but you probably all knew that already.
² If this hasn’t already been covered, you can cancel the Heavy Thunder Knuckle after you hit with it; this’ll send your opponent up in the air, but keep your feet still firmly on the ground. Again, probably common knowledge at this point.
³ The damage of this combo varies with the Hyper Combo you end it with, and all of them will hit with varying success…:
► “Emergency Combination” ( :qcf::atk::atk: ) will end the combo with 773,[SIZE=2]000 DAMAGE… if it hits… which it might not unless you can time attacks well.[/SIZE]
► “Burst Time” ( :qcb::atk::atk: ) yields 779,[SIZE=2]000 DAMAGE at the end of the combo, and what’s more, this Hyper Combo hits most reliably compared to the other two.[/SIZE]
► “Viper Full Throttle” ( :dp::atk::atk: ), in true Level 3 fashion, ends your combo with 1,023,[SIZE=2]000 DAMAGE (more than enough to kill three-quarters of the character roster, and that’s without X-Factor), but it will miss some characters more often than not.[/SIZE]
On the plus side, the combo doesn’t use any assists, so you can use any level of X-Factor if you desperately need it. As well, you can do this literally anywhere on the screen; it’s most reliable in the corner, but you can pull this off mid-screen (your double-jumps have to go straight up, though, and even then you’ll get crossed up on the way down which might confuse some). The bad news? Unless you have really good timing, you’ll probably drop this quite often without practice first—I know I did… as well, to even pull this off, you need at least two levels filled in your Hyper Meter (at the very least; you need four meters beforehand if you plan to use the Level 3 Hyper).