The following contains spoilers for Season 2 of Alice in Borderland, now streaming on Netflix.

In Season 1 of Netflix's highly popular Alice in Borderland, fans were crushed over the Seven of Hearts game. There, in this purgatorial take on Tokyo, Arisu and his friends had to play the twisted game to survive (nodding to Squid Game), which melded tag and hide-and-seek. At the heart of it were collars that they couldn't remove or else their heads would have been blown off.

It felt inspired by DC's Suicide Squad, with the game masters forcing Team Arisu to chase each other. And sadly, like what happens with Amanda Waller's Task Force X, brains were indeed splattered all over the arena. It almost broke Arisu, but he moved on, inspired to honor his friends. Interestingly, Season 2 brings back the collars, but this time it's in a much more horrific manner.

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Alice in Borderland's Collars Are Devious

Alice in Borderland brings the explosive collars back

Season 1's Seven of Hearts had Team Arisu using special goggles as well, but they had to play against each other. Once they caught the participants (aka the Sheep), their visors would pick up a digital signal, making them the Wolf. At the end of the timer, the Wolf would survive, while the Sheep would lose their heads. It led to the friends backstabbing and trying to take each other out, hoping to become the Wolf and hide out.

However, Karube, who's been with Arisu since childhood, recognized he didn't live a good life and no longer wanted to be a traitorous monster. He hid and accepted his death, leaving Arisu as the Wolf. Chota did the same, confident the smarter, more deserving Arisu would make it out and eventually beat Alice in Borderland's final boss. They willingly sacrificed themselves, which left Arisu depressed and taking some time before Usagi encouraged him to escape the realm.

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Alice in Borderland's Collars Get More Cerebral

Chishiya takes the Jack of Hearts out in Alice in Borderland

Season 2 introduces another version of the collars. In this game, Chishiya is locked in a penitentiary with other inmates, including a Jack masquerading as an innocent prisoner. People are tasked with asking each other to identify their sign (clubs, diamonds, hearts or spades) on the back of the collar, hoping their faith pays off. They then have to return to their cells when the timer expires and reveal their sign to the master, but if they're wrong, remain silent or try to escape, their heads are blown up in a similar trap as what Season 1 had.

It adds a deeper layer of deceit, working a more cerebral game than the physical one Team Arisu endured. As innocents start betraying each other, more people lose their heads in gory explosions, akin to a Fatality from Mortal Kombat. Once more, the R-rated Alice in Borderland makes these scenes as gruesome, squeamish and graphic as can be. Thankfully, Chishiya's intuitive nature helps him suss out the Jack. With a couple of allies, they torture the villain and win a game meant to show humanity at its most depraved. Luckily, the villain is blown up, pushing Chishiya to move on and try to find Team Arisu in this limbo. As for the other survivors, they begin loving the sadistic nature of Alice in Borderland, eager to become masters and torture people themselves in a potential Season 3.

Season 2 of Alice in Borderland is now available on Netflix.