You know some of those combos a lot especially the whole Sirius+EarthThunder,but never use Platinum Meteor like that cuz I dont know much about it.

Anyway heres some other combos you never listed:

Ice Stage or Ice Grenade+a strong Aqua Card+a strong Break Card+Snow Storm

I would recommend Ice Grenade in a Wifi battle and freezing them to immobilze them with you stongest Aqua Card available like Torrent Wave and Queen Virgo then unleash your best Break Cad available like Break Saber to get high Noise but to get massive damage points try either Rogue Break or Ox Tackle then end it with Snow Storm if you got it.

Wood Grenade or Grass Stage+a really powerful Fire Card

using a powerful fire Giga card like Ox Tackle and Break Time Bomb is good,but if have Jack Corvus X or GA in your hand along with Queen Virgo you should use it and Jack Corvus does 2 Fire Claws instead of 2.

Double Eater or 2 Area Eaters+Instinct Meteor or Platinum Meteor

Use Doulbe Eater to get close to the enemy and have like 1 panel row between you and him and rip him with Instint Meteor and you could use Platinum Meteor and if you have Divide Line that could be a bonus.

Double Eater+Divide Line+what you do next

I already said this but use Double Eater to corner your enemy and use Divide Line to keep distance between you and him.If you have AirShoes and FloatShoes,Cygnus Noise,or Black Ace this could work for you.Doing this can help you strike down your enemy and leaving them defenseless because they cant do close range attacks on you and you can to them and close range Mega and Giga Cards like Rogue,Acid Ace,Taurus Fire,Moon Destoyer,and Break Time Bomb wont have an effect on you,as they wont work for you too.You acn use the combo above this one too and other attacks to demolish your opponent.

Note:This is not an attack combo,but a strategic combo.

I don't really use tactical combos - often times I just grab what's available in my folder, which is much more efficient because it lacks any mega-class cards and ergo rarely has one card overlapping two or more other cards - but I have a couple of thematic ones which I named.

Bushido Blade / Quadrupple Wield
Bushido + Bushido + Bushido + Bushido (number doesn't matter)
Not only will they increase damage, but you have Life Sword range with just three! Excellent for building noise against bosses.

Red Joker (need noise first; Meteor folder only)
Dread Joker X/GA + Dread Lazer + Red Gaia Eraser
Awesome three-joker homage, if you're lucky enough to draw them all in the same row.

Hub Batch (defense setup; order doesn't matter)
Warrior's Soul + Super Barrier + Buster MAX
Sort of sets the stage whatwith it being an "armor-up" sort of thing. Named because its effects are similar to the actual Hub Style from EXE2, and possibly to the Hub Batch navi customizer pack as well as the giga chip in EXE6.

I find that it's easier in Star Force 3 since Noise allows us to string attacks together without having to wait for the "flashy" period to end on bosses. That's just my opinion, of course. I know some people who could do monstrous attack-stacking in Star Force 2.

There aren't, partly because of Galaxy Advances, but also probably because allowing people to string any cards together because of noise would mean people could come up with really sick combos (including with mega cards).

We just like to name our strategical attacks. ;)

BigGrenade + HeatUpper

This is mainly used for PvP. The first thep is to throw the BigGrenade. If the opponent guards then lock-on and use the HeatUpper. If they don't move then you pierce their guard and remove the SuperArmor ability (if they have it equipped). If they move then they're gonna get hit with the BigGrenade.

GrassStage + FreezeKnuckle + OxTackle

This is a harder combo to pull off for the simple fact that FreezeKnuckle is SLOW. And that if you have the OxTackle giga card, not the GA, then there is a high chance of cards stacking. Once you use GrassStage freeze the opponent with FreezeKnuckle. Now, OxTackle has both Breaking and Fire attributes to the damage is multiplied by 3 giving you 1650 damage. GrassStage can be swapped with GreenInk or AcornBomb too. You can also make much more variations of this.

MegaBoost + Non-Necessary Lock-on Card

MegaBoost gives you invincibilty as long as you lock on. So if you lock on using something like BigDrop which you don't NEED to lock-on with it'll give you free invincibilty. Chips that can be used with this are: WideWave, BigDrop, Big/Ice/Fire/WoodGrenade, JetAttack, etc.

DoubleStone + TimeBomb + TorrentWave

TorrentWave is powered up with every item it washes away. Its original damge is 400. After washing up the other items it gives you 800 damage. If the opponent is frozen before using this combo you get 1000 damage.