I'm gonna start this one off with Kingdom Hearts also. Probably my all time favorite cover. Looking forward to coming back to this thread in ten years and seeing a bunch of broken images.
... Oh, wait, good box art. Chrono Trigger is that rarest of boxes, an American box of a Japanese game with actual art by the artist that's superior to the Japanese version. Where Japan just had a generic lineup shot, we've got this solid action scene which really highlights Akira Toriyama's strengths: unique looking characters, effective action in a cartoony framework, and distinct monster designs. It's also secretly even better than it looks if you consider Toriyama's best compositional technique, the right-to-left action (aka THAT GOOD WEEB ****) - Marle shoots a magic ray that hits Crono's sword, and where is he aiming it? Why, at this big old monster, so he can better protect his friend, Frog. Even our decidedly-not-trained-to-look-for-this 1995 eyes would no doubt have noticed Crono's sword directly behind that eye-catching (if never quite as great as they thought it looked) logo, leading us into the action somewhat naturally. Really the only bummer is Nintendo's mandatory goofy black border forces everything into the upper left corner in a somewhat unsightly fashion, but overall, man, I love this box.
The box art for the first Spider-Man movie game, with its simple motive of a close-up of Spider-Man's eye, evokes an equally simple but impossibly lofty promise: that you will feel what it's like to be Spider-Man, to see the world from his eyes. Ironically, its sequel delivers infinitely better on that promise, and is the one remembered fondly for it to this day, but that game has the standard poster from the movie as its box art.
Talk about old school here. I used to play this game religiously; granted the graphics certainly didn't give the box art justice. In the 80s, Intellivision was to the Atari 2600 what the PS4 is to the Xbox One.
Man, you forget how much Sega just completely reworked video game advertising but then you watch 30 seconds of a guy calmly explaining the benefits of the Intellivision and it all comes flooding back.
My family got my brother and I the Sega Genesis after we had the Intellivision for a good six or seven years.
This takes me back to the 1980's and has an old school cold war/sci-fi feel to it. But what I feel is some of the best artwork.
Holding the game in my hand and looking at this cover got me even more excited to explore the world of Ancient Egypt. Amazing design.
Shadows of the Empire: A very enticing poster, and everything pictured refers to events and characters you actually do take part in and meet in the game. No false advertising. You do take part in space battles, you do participate in the battle of Hoth, you do engage in a bike chase and you do meet and fight Boba Fett. The head of Prince Xizor featured prominently perhaps is an exception, as you never physically encounter him, but he is the reason behind the events in the story. And his face is plastered on the 'game over' screen, so there is that... Notice that the Star Wars logo itself is hollow and casts shadow on its white background, in a game subtitled Shadows of the Empire. Intentional?
A picture online doesn't do the original box art justice though. Like some paper back book covers, the box had a mixture of matt and embossed gloss surfaces.