They are not supposed to reproduce coupons with the comic foil hologram. These holograms are put in place to safeguard the authenticity and validity of the coupons. Reproducing them would violate the rules and potentially lead to legal consequences.
Spiderman is Marvel, no doubt about it. He's got that classic Marvel charm and his storylines are deeply integrated into the larger Marvel comic universe.
It's hard to give an exact age as it depends on the specific storyline and continuity. But generally, Spiderman was likely in his early to mid-twenties in the 1990 comic.
Sure. Comic Spiderman is well-known for being able to climb walls. It's a crucial part of his superhero abilities that enables him to move freely and fight crime in unique ways.