After getting defeated by the player he got sent back to The Banlands, He tried getting out again in The Games event but failed to do it...

In The Classic event we finally get to see where he was imprisoned, 1x1x1x1 teleports to us after touching the Daemonshank.

In the description of 1x1x1x1's shirts and pants that came with 1x1x1x1's teapot we are told that when it cracks his power will be all over Robloxia, the teapot eventually did crack and in 8th Annual Bloxy Awards he stole The Imagination Core and kidnapped Metaverse Champions.

1x1x1x1 has ability to corrupt different items that he uses as his weapons, so far he has Banhammer, Katana, Venomshank and The Teapot Turret. These weapons can teleport him.
The toy of 1x1x1x1 comes with an accessory called "Mind Virus" he may be using it to control people.

1x1x1x1 got imprisoned by 2x2 in a place which is known as The Classic hub, a place made specifically to hold him, between time and space, where he spent almost 10 years before somehow getting out in 2017. After getting out he got terminated and sent to The Banlands.

Dude, this feature is awesome