There weren't that many, a few #1 specials I think and then a couple bookend crossover issues. It's all collected in something like two trade paper backs. Manga Spiderman got his own series but IDK how long it lasted. I liked the F4 because of the spin on their powers and being something like Power Rangers in that the Megascale made them giants using their powers. The Thing for example had geo-kinesis and built up his rock armor to giant man status to take down giant threats. The female Torch had a giant fire Megascale form, Sioux had an invisible giant suit, and Reed just became super stretched out and gigantic. Spiderman had Pete as a ninja in training with the Spider Clan until his sensei Ben is killed by this universe's Venom who's a member of an opposing clan. It was interesting in the #1 special how many of Venom's goons looked like other Spiderman enemies like Rhino, Electro, and Vulture.

The one downside to the universe was the Hulk was basically Godzilla. But he was just a giant who looked exactly the way Hulk normally does. Avengers were like a poor attempt at Voltron, and the X-Men was just all over the place. 

[img]http://static.srcdn.com/slir/w500-h368-q90-c500:368/wp-content/uploads/marvelmanga2.jpg[/img]

~KL~