I do not at all enjoy "un-playing" in a non-natural fashion just to unlock this stuff. I play to enjoy the game as designed, and would rather just get back to playing that way with all the new content.
My assertion is that both options should be available; for those who want to do the unlock hunts and get the material for free, good on them. For those of us willing to support the publisher with more money, why not?
At any rate, someone has posted their unlock of Cosmic Omnitron.
The conditions at the moment of unlock were:
Voss (Normal) in Megalopolis.
SS Tachyon, Fantatic, Rook City Wraith, Bunker in play
Triggered the moment they knocked out TFC Conqueror; they'd knocked out TFC Stalwart in the same round, but not on that turn.
Playing SS Tachyon, Fanatic, RC Wraith, & Bunker vs. Voss (normal) in Megalopolis.
The unlock happened when RC Wraith used a Throwing Knife to take out the TCF Conqueror (which had been out for more than one round already and was down to 1HP). In the turn immediately prior to that, Fanatic had used Wrathful Retribution to take out an undamaged TCF Stalwart in a single-shot (the Stalwart had just come out that round).
I had been pretty sure that other folks had already tried taking out both ships in a single round, so I wasn't even focused on that [I was trying to test having Tachyon used two Research Grants in a single turn (via Embolden) as I was figuring that Cosmic Omni was reborn in Meridith's lab].
So both ships were taken out in the same round, but not on the same turn. One had taken previous damage, one was hit with a single-shot the round it came out. RC Wraith hadn't even finished using her Knives yet. Other state info, since I'm not sure hat might have been relevant: RC Wraith had only her Knives and the Belt in play. Voss had nothing besides the Conqueror in play (having lost the Stalwart and a minon the previos turn).
Sorry for the late details, I got caught with some RL stuff at home moments asfter posting the tweet about the unlock.
Do we have a third yet for destroying both ships in the same round in Megaopolis to confirm that we're not missing anything?
As for the story connection:
I was specifically experimenting with Voss in Megalopolis and here's why. Fighting Omni to unlock Cosmi, didn't make story sense. According to the bio info on the Wiki, Omni had already been defeated and Cosmi was "reborn" while in Tachy's lab when a "cosmic entity" poked at the Omni parts. So I figured that, just as Bomber Blade was messing around when heroes were fighting Dawn, perhaps the battle with Voss drew an entity's attention to Earth; and the battle was in Megalopolis as that made the most sense for where the lab would be located.
As I said above, I wasn't even trying for both ships as I thought others had done that already. I was trying to trigger something with the Research Grant card (representing the lab) in Megalopois vs Voss.
Also, I'll chime in with a vote in favor of the unlocks. Not because I found two of them first, but because the hunt made for a fun 30 hours. Now that the info is out there, unlocking the heroes is pretty easy. The villians are a bit harder, but it mostly just gives you a direction to play rather than just using randomize.
If you had to unlock the expansion packs, that would be annoying. But as all you really get from the variants is a different power for a hero (rather than a full new deck, character, environment or villain), this was fine with me.
Just killed both ships in one round, same turn even, but no unlock. For reference, I'm also using Wraith (normal) in Megalopolis for my takedown on the ships, a Razor Ordinance on one and Throwing Knives on the other. Tachyon had been killed the round before thanks to an ill-timed Cramped Quarters Combat making the ships immune to everything, though, so I'm guessing that having Tachyon in your team and alive is necessary---given her involvement in the backstory for Cosmitron, that would make sense.
Yeah, requiring Tachyon makes some sense for the story. It also makes for a parallel to the Young Legacy unlock, in that the unlock requires a specific action to happen, while a specific hero is present, fighting a specific villain, in a specific environment.
for reference, In my game Tachyon had both her Research Grant and HUD Goggles in play. It's probably not important, but I could see the Research Grant (representing her lab) being potentially important, in the way we were theorizing that Legacy's Lead From The Front may be required.
[Edit: I had referred to the MB Blade unlock, when I meant Young Legacy. fixed]
For me I had Tachyon take out the whittled ships with a Sonic Vortex. Tachyon only had HUD Googles in play. It sounds like it has be in Megaopolis, both ships have to be destroyed in the same round, and that some version of Tachyon is in the group.
I took out both ships in one turn in insula primalus no tachyon on the team and I unlocked omnitron. Haka did the final blow on both ships thanks to visionary and ra... I like redundancy.
Okay, this is getting strange now then. So Megalopolis isn't required and neither is Tachyon? What the heck is the trigger then? Other folks have destroyed both ships in the same turn without unlocking Cosmitron.
Could the order the ships are destroyed in matter? I killed Stalwart then Conqueror.
Well the only thing I was going for was the destruction of the two ships as close together as possible. I also wiped voss's field. (They where all under savage mana... with all of the dinosaurs). For me the ship destruction order was stalwart then conquerer.
I just knocked out both in one round without unlocking. Legacy, RA, AZ, Fanatic, Haka. In Megalopolis. AZ finished them both off. Fanatic had dropped the round before (keeping The first one Chastised for half the game). Didn't pay attention to order.
I'll add my vote to the idea of secret unlock steps being annoying. They're only secret for a couple of days until the internet figures them out, then they're just a Google search away. I just want to play the game, not be teased and frustrated by it.
Well a little over 24 hours has all of the unlockes known. Maybe not all the minutia but at least broad strokes of the goals. See them as puzzes before they are discovered and play challenges after. If you don't want a spoiler then they remain puzzles. I'm at the point in the game personally where I like looking for new challenges. Like perfect games or doing over 100 damage in one turn, etcetera.