This is the fourth episode of the Back to the Future series called "Double Visions". Some sections of the review are going to be understandably short since each episode is quite similar in terms of mechanics (only the plot really changing). I'd recommend reading the previous reviews in conjunction with this one to get the full picture.
Audio is as good as Episode 1. Authentic sound effects and great voice acting mired by some occasional sound stuttering issues.
The music is still great but for some reason there were occasional bits in the game where no music was playing at all which seemed rather silly during action sequences.
Graphics have the same style as the previous episode and it had just as many graphical glitches as there were in Episode 2.
The plot wasn't as great as the previous episode - most of your time in the game is spent at one location, namely a Science Fair back in 1930s Hill Valley.
In this episode, Marty has to break out of the Citizen Plus program in the alternate 1985 and rescue Citizen Brown (Doc in this timeline). Your goal will be to redirect the young Emmett Brown's interests from Edna to science!
The game still suffers from the fact the player is limited in what he/she can do (and this runs the danger of the player becoming a mere spectator), however the puzzles that involve ruining Emmett and Edna's relationship are a highlight in this episode.
The game has average replayability as you'd expect for any game in the adventure genre.
The game is pretty well polished, which is pretty common for Telltale Games however I never liked the mixture of keyboard and mouse in order to control your character (you can blame consoles for this). I miss the days of traditional point 'n' click adventures...
Score - 8/10Episode 4 is fun but the story isn't as intriguing as the previous episode.
If you want to get the game, visit Telltale Games.