i think mika is at her best when played in v-ism. she has damaging, fairly easy-to-land vcs, and the usual benefits of the mode: invincibility, free command throws, and the ability to otg.
her best pokes:
low jab: this is rapid fire and can be combo’ed from.
low short: this has great reach and even better priority; try to use this offensively rather than defensively. it’s not ideal to reverse poke strings with, but if executed at the same time or before the opponent’s attack, it will usually win.
low forward: not a bad poke. it’s quick and its priority/usefulness varies, depending on the opponent.
t+forward: slightly slower than the all the pokes listed above, but once it’s in its full hitting frames, this move can be highly dominant. not only does it beat low-hitting attacks such as the shoto’s crouching kicks, it will also beat a large number of crouching strong type moves. in close combat it’s usually a good idea to use this move as a follow-up to a previous poke - low jab, low short or even a t+forward will help reduce the impact of its start-up.
low roundhouse: a slide that knocks down, but can be recovered from, depending on the distance. when close, it can travel under some projectiles: sonic boom, psycho shot. decent priority again, but has recovery and as such must be spaced correctly and/or used sparingly, for a surprise tactic. it’s an important move though, because you’ll need it to set up her wake-up games.
anti-air:
low jab-> fierce flying peach: this seems to be her most her effective anti-air normal. it works from all ranges. if the jab scores a counter hit, the flying peach will hit nearly every time. if the jab didn’t counter-hit the opponent, but you still cancelled into the flying peach, be careful as you can be punished by quick players. its priority is great. it beats all the important jumping attacks - zangief’s splash, all shotos’ jumping attacks, charlie’s, karin’s jump short, guy’s d+strong etc. hit the button just before the move makes contact.
for akuma’s dive kick, use standing jab-> fierce flying peach instead.
low strong: not bad. be sure it’s done early.
kk airthrow: great range.
combos:
jumping roundhouse -> low roundhouse
(optional jumping attack)low fierce-> roundhouse shooting peach
cross-up splash-> low jab x 3-> low short
basic vcs:
anti-air vc: low short or low jab-> roundhouse shooting peach x n -> whiffed normal-> otg roundhouse daydream headlock
for an anti-ground vc, start with low fierce. p2 v-r.mika cannot use the shooting peach x n when in the corner so use the following instead to switch sides during the vc and keep them mid-screen:
vc1: shooting peach-> whiffed shooting peach-> shadow shooting peach hits-> continue in other direction with shooting peach etc.
corner: any vc activation-> fierce paradise hold x 4. this is most effective against ryu, ken, akuma, dan, honda and blanka, because they are the only characters who can’t perform a recovery during the combo.
unblockable (prefereably after a knock-down and against a meterless opponent) :
vc1: cross-up splash-> low short-> low fierce-> shooting peach-> etc.
basic strategy:
low jab x 2~3-> low short short-> jab flying peach is a semi-safe combo that leaves you safe and in a good position when blocked: paradise hold, anti-ground vc etc.
the paradise hold has great range and can grab opponents even when they’re in the midst of a normal attack. eg. ryu’s low foward.
at times you can even just walk with range and paradise hold the opponent.
use her pokes to make the opponent become defensive so you can set up ticks into her fierce paradise hold or pressure with her t+forward. low jab x 2~3-> low short-> fierce paradise hold works even if the opponent blocks or is hit. her low strong can be used as a dash - useful against defensive opponents, where you can hop close to them for your daydream headlock, more low jabs, or low short-> paradise hold.
mix up your strategy against waking up opponents by using:
standing fierce: great guard damage and also puts you in position to cross up the opponent. a fierce paradise hold after a blocked standing fierce works well when used a surpise tactic.
(optional) low short-> fierce paradise hold
taking a few steps back and then low strong-> daydream etc.
jumping over the opponent, feigning a cross-up splash and landing
into a daydream headlock.
i hope that’s given you rough idea of what to do with v-mika. if you have any more questions or queries, post them and i’ll see if i can help.