Okay then, I won't argue. Maybe these abilities have been added to his repertoire in some later appearances... I'm mostly familiar with his appearances in early X-Factor and in X-Cutioner's Song, where he definitely didn't have them yet.
I don't know about Mojo, but if it meant we got to see Spiral, I'd be all for it. Spiral is one of my favourite Marvel villains ever...
I had to look her up on wiki because I didn't recognize the name, but I do remember seeing her on a few of the old Fox Kids X-Men episodes after viewing a pic. While I do like the multiple-arms thing, I don't think it would work unless they made a full movie revolving around the Mojoverse, or at least a half-and-half conflict where something else big was involved. Still, we can dream. Someone like that deserves a fight where their multiple arms get used to their fullest, and that needs screen time to happen. I guess we'll have to be content for now with that Grievous vs. Obi-Wan fight from Revenge of the Sith.
Speaking of multiple arms, does anyone think a reboot of Doc Ock as the main villain (or one of the main villains) would be a good idea for Spidey's stand-alone reboot? I know they were trying to go in a different direction with their usage of Spidey's rogues gallery for TASM 1 and 2 (except with Harry Osborn/Green Goblin Mark II being used in both the Raimi and Webb series) but I think people are probably sick of goblins by now so Spidey's second-most iconic villain, the one that sometimes was a friend/ally and who is modeled after a species with the same number of limbs as a spider, could work for a second go-around. I think he was well-received enough when Molina was playing him (I know that of the three Raimi films, the one with Doc Ock was my favorite, and his presence and performance was a big reason for it) that someone new, with a few inventive tweaks to the tentacles' abilities, could dazzle us (even if the rest of the production and casting decisions are questionable). Most of the time the biggest complaint is that the villains are weak or badly developed but if the Raimi movies had one strength, it was more or less the villains (except in part 3, but that wasn't his fault). Of course, who they could cast that would be perfect for Herr Doktor Squiddy...hmm...Christoph Waltz would be fantastic as always in any role he plays, but I don't think he has the mildly chubby or otherwise muscular build we usually see on Octavius' various incarnations that outweighs Spidey's leaner tone. And Doc Ock's power would be a mildly grounded one for an appropriate character in the MCU, the technology not being horribly outlandish compared to many of the things we've already seen from Iron Man or Agents of SHIELD.