I’m guessing you played gravity ninja ;p, he likes to do empty jumpins a lot to bait your cr hp. mix it up with st.hp. and then at least you can keep him from jumping in on you.
But still Rose matchup feels so unfair. You can’t stand anywhere without getting owned (closerange, midrange, farrange). The only time I can pull of a win is when I somehow force the rose into the corner, and start doing frametraps or score a knockdown.
Rose is sort of free on knockdown(without her U2)
lk tatsu on wakeup isnt a very smart idea, although it beats her ex qcb + K(forgot the name) her dp grabs you out of the air. (not 100% sure about this, maybe I was doing the tatsu too soon)
Your best bet is safejumps with OS shoueken to prevent backdashes and from there keep the pressure on.
You can play footsies with Rose but you have to be gdlk in your spacing.
dealing with U2: bait it out and just block.
Vega’s backflip OS: do a jumpin, keep holding forward, do a cr short, keep holding forward, do a st short or st lp.
If he does a backflip, you keep walking forward and you can time a cr mk srk to punish him.
This is just one OS, you can probably OS forward dashes to catch him as well. maybe even punish him with a st hp into fat combo? or OS an ultra that will probably catch him as well ;p
I wouldnt know because the Vega’s I play never use backflip, that move is so bad