things i'd like to point out
I liked Fox's standing animation from PM 1.0/vBrawl more, it looks more "i'm-ready-to-kick-***-very-fast" but at the same time i'd like to see his Alt Costume in that animation, since it's based in his Melee look, and i know how tedious it'd be to put the Wait1 first keyframe back in all of his animations
Indeed the process would be tedious. It was tedious in the first place but we felt the Brawl wait looked a little too much like he had coffee. We had thought of trying to give him some sort of middle ground wait idea a while back, but we decided to stick with this.
And always tought in giving him a new Fair (maybe 64 inspired)
That would require changing the move entirely, which is not really an option.
Wario's well known victory animation
I'm not quite sure what you're getting at here. Do you mean he should have his well known victory animation from Wario Land or that the one that he has should be improved? If the latter, care to elaborate? Note that trying to reference that animation from the gif was a bit of a pain as Wario does all sorts of muscular morphs that he cannot do with his rather primitive Brawl rig.
His entry would be better if he came out of a plane or a portal (like Wario Land)
ROB can have a new taunt (something fun, like his assist trophy grab animation)
These are actually both quite neat ideas. Something to consider for the future.
Snake's Utilt has to look more like "take this!" or arching at a side-down at the end
Again, I'm not quite sure what you're getting at here. Care to elaborate a little further.
And change his near-a-grenade-explosion animation to look like he's covering himself with an arm
Personally I don't even think this is worth changing. It's an animation you barely ever see as it is.
His Crawl stab can be an upwards thrust, since it has upwards KB
This would also in turn change the hitbox positions, so again this isn't really an option.
Charizard's and Ivy's taunts are unsatisfying/boring (since Brawl)
Zard's I agree with, Ivy's I personally never had too much of an issue with. Zard I'd like to make at least one new taunt at some point but it's just trying to think of some cool ideas. Ivy is a pain to animate being the only quadruped in the game and having those vines which are quite difficult to animate.
I can see that Sonic's uptaunt uses part of Falco's down taunt animation (maybe i'm wrong but it still looks cool)
It doesn't.
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Didn't have a response for every part of the comment. Though cheers for the feedback.
And that goes as a general comment by the way. The animators will keep working to refine as much as we can to retain a consistent standard of professionalism and quality(despite us all being amateur animators XD).