Horizont-Al and Verti-Cal are two other dimensional beings resembling short humans and dressed in mismatching suits of red, purple, and various other colors.
Horizont-Al and Verti-Cal are distinguishable from each other by the fact that one of them always stands on the top of his environment and the other always stand on a wall-the latter somewhat reminiscent of Zonic the Zone Cop.
Preferring to be called "Al and Cal" for short, these two first appeared when Sonic collected the first cluster of Power Rings he had ever encountered. Sent through a portal to another dimension, he met Al and Cal, who quickly had his brain hurting with their confusing speech patterns and the constant changes taking place in their home Zone. For a time, Sonic believed them to be agents of Robotnik, until he learned that they didn't even know of Robotnik's existence. Afterwards, Sonic was returned to Mobius Prime, whether by Al and Cal or by the wearing off of the Power Rings. Of course, the moment of peace was brought to an end when Antoine walked up and unwittingly reminded Sonic of Al and Cal with the question "What's up?", setting Sonic after him in a fury.
Al and Cal made a return appearance after the defeat of Robotnik and the launching of the Ultimate Annihilator. It seems the Annihilator's shock wave had devastating effects on Al and Cal's zone: it drastically transformed them into hulking, twisted robotic like beings looking completely different from their previous forms. The two became enraged and battled each other with their new weapons and powers, until Sonic and Tails accidentally wound up in the zone again while investigating a "strange report" around Knothole village. Al and Cal armored Tails and Sonic and gave them weapons, using their powers to turn one another against each other, like their own personal chess pawns. Sonic nearly killed Tails with his triple spin until the spell broke and both he and Tails went back to normal. Al and Cal's powers were not strong enough to break their friendship. Tails tried to convince Al and Cal to try and be friends like the old days, but Al and Cal simply responded "NAHHH" and went back to blasting each other. Sonic and Tails exited the zone and left Al and Cal to their warring.
Horizont-Al and Verti-Cal were later seen in Zone Jail trying to comfort a beaten Scourge the Hedgehog. They revealed to him that, while he was a king in his own zone, they were gods in their home zone. Due to their constant fighting, it seems other zones were becoming damaged, and the Zone Cops had to put them down. Thanks to the Power Inhibitor Collars all inmates wear, they were transformed back into their original forms and were put in the prison where they were constantly picked on until Scourge arrived. (SU: #29)
- Horizont-Al and Verti-Cal are a nod to Superman's Mister Mxyzptlk, both of them proving incredibly annoying and displaying impressive powers.
- Al and Cal are first characters to appear in the Archie Sonic the Hedgehog comic series to be based on the games or the Sonic the Hedgehog television series.