Thor is transformed into a frog in the previous issue and spends this entire issue as an amphibian
In Thor #365, he lifts Mjolnir and becomes a frog version of Thor
1st appearance of Puddlegulp, Simon Walterson, a frog who later wields a hammer named Frogjolnir as Throg
⚠ Misconception: sources cite this as the first appearance of Throg. Thor is transformed into a frog in #363 and wields a sliver of Mjolnir as a frog version of Thor in #365. Simon Walterson does not appear as 'Throg' until Lockjaw and the Pet Avengers #1 (2009)
1st cameo team appearance of The New Warriors: Nova, Night Thrasher, Namorita, Speedball, Firestar and Marvel Boy, later becomes Justice
1st cameo appearance of Night Thrasher
The character Marvel Boy shares no relation to other characters who also used the name Marvel Boy but he does share his real name, Vance Astrovik with the character known as Major Victory from Guardians of the Galaxy
Major Victory and Marvel Boy are the same person from two separate dimensions and exist in stories as mostly unrelated individuals