In very rough chronological order.
Little is known of this universe. In it, Batman's junior partner is Superboy, who wears a uniform that combines Tim Drake's Robin costume with Kon-El's Superboy outfit. It is unclear if this Superboy is Kryptonian or a clone with TTK. Batman's former partner, Robin, is dead. There may or may not be a Superman. Knockout exists, and is an agent of the cross-Hypertime villain Black Zero. She possibly killed Catwoman. The Batcave has Kryptonian artifacts in it, which appear to be from the post-Crisis Krypton. Cadmus is controlled by Black Zero.
In this universe, Superboy (Kon-El) was matured to adulthood, and Superman never returned from the dead. Anti-clone hysteria culminated in the destruction of Metropolis, and "Superboy" taking the name Black Zero. He and Cadmus are resisted by the Challengers of the Unknown and Knockout. Another Superboy also resisted him, but died trying to warn the Central Timeline. Black Zero has become a misguided world-saver - or world-conqueror.
Throwaway. A world where Superboy is Karkan, lord of the jungle.
Throwaway. In this world Superboy, Dubbilex, Guardian, and Ace Morgan are the Challengers of the Unknown, each with a different symbol on his distinctive purple uniform.
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