Your poster is aiming to kindle nostalgia in its viewers to drive sales ('remember this'), but I'm not feeling much nostalgia. The reason is that your design strays, in my opinion, too far from Snake's simple look and feel. Two colours. Minimal directions of movement. Your diagonal text and pretty pastel background do nothing to help arouse nostalgic feelings, because they're so divorced from the original style of Snake: snakes can't move diagonally, and the game wasn't colourful. I would've stuck to a super rigid grid pattern (could've done some really fun things with snake-like grid typography) and gone for a more 8-bit, pixellated style using louder versions of the original colour scheme. It's a pretty design, but imho it's not a good design for its purpose.
Also, just as an aside I think your 'Nokia' and the website link need slightly larger margins around them.