I really liked the first 12 issue of the original Marvel series; in fact it was the first comic book series I bought. Anyway the series started out as a 4 part mini but continue after it was successful. Issue 3 featured a cameo by Spiderman, in the black alien custom, along with some other Marvel charters. This would be the only time you would see this as latter it was explained that Transformers and GI Joe were not part of the Marvel Universe and they took place in there own Universe. Any way looking back the series was kind of hit and miss, more misses as it went on IMO. I lost interest with it but I would like to at least have read the ending.