Gobbledygook

Gobbledygook was an anthology series published by Mirage Studios. The first two issues were published in 1984, and feature the debut of Fugitoid, Triceratons, and Federation, amongst others. Many comic guides indicate that Gobbledygook issue 1 is the first appearance of the Teenage Mutant Ninja Turtles, but this is just an advertisement, and Mirage themselves consider Teenage Mutant Ninja Turtles issue 1 (Mirage) to be their first actual appearance.