Having played Earthbound before, I found this to be entirely hilarious. Really makes me think this is most likely what Ness himself saw as happening for a majority of the game given all the weird stuff he saw and dealt with in the game.
The animation was pretty good. The backgrounds seemed like they were tiled rather than really fitting in with the animation itself. Then showing the guy playing the game was sad since the graphics seemed to be of a slightly different quality than the rest of the animation. Had to compromise a bit to get this done on time?
The audio is entirely Earthbound except for the Hippie's voice. Would have been made humorous if he was holding a ruler while giving Ness the bag of drugs.
The story itself seems simple, forward, and humorous. Ness gets drugs without asking about the effects from the New Age Retro Hippie and suddenly goes on a weird mental adventure where he transforms leaving the player very much confused.
Overall, short and humorous. Could have done a bit more though.