In the game, you play two new character unrelated to the movies, Jay, a friend of Sam Witwicky, who unwittingly gets caught in the mess and Vanessa, an agent of NEST, as they help the Autobots combat the Decepticons and try to prevent them from taking over the Earth.
The game has you traveling with an Autobot as you shoot down enemy bot chasing you. As with previous title Let's Go Jungle!, there are sections that prompt you to hit buttons at certain times or turn the gun to avoid attacks. Every so often the Autobot your with will engage in combat against a Decepticon and you must help them out by shooting the Decepticon enough that the Autobot can gain the upper hand. How well you do contributes to your ranking at the end of the fight.
The game can be found in the usual '42 version or the '55 theater version. Here's a playthrough of the game.
Gained a sequel in 2018: Transformers Shadows Rising.
Transformers Human Alliance has the following tropes
- Action Girl: Vanessa.
- And the Adventure Continues: You beat Megatron, but he gets away while you're dealing with dismantling his Energon tower and naturally Optimus vows to continue to fight the good fight.
- Attack Its Weakpoint: It's a Sega shooter, so standard "hit the flashing marks before you're attacked" deal. The Autobot / Decepticon fights also work on this.
- Attack of the 50-Foot Whatever: Considering your dealing with giant robots, this is a given.
- "Blind Idiot" Translation: The dialogue starts falling apart by the final battle and ending. "Will I be written in history books?" "It is show time!" "Megatron will never let it go. The battle against Decepticons will continue. I am Optimus Prime, and I send this message that as if we Autobots are on the Earth for one day, last drop of blood will be drained for protecting the human beings... ...against Decepticons!"
- Car Chase: A few sections here and there.
- Captain Obvious: Jay proclaiming "It's Bumblebee!" at the start of the first Autobot / Decepticon fight despite the fact they were riding in him not ten minutes ago!
- Continuity Snarl: The game is nominally set between the second and third movies, but it doesn't quite fit. Two of the bosses are implied to be Brawl and Scorponok, who were both dead by this point. You also fight Soundwave and Shockwave, even though the third movie suggests its the first time the two have been seen on Earth. Not that the films pay much attention to continuity to begin with, mind you, but still.
- The sequel, by contrast, doesn't even try to fit with the movies, and is some kind of alternate timeline set after the third film with elements of the fourth.
- Light Gun Game: Of the mounted gun variety.
- Press X to Not Die: As stated it uses the system from the Let's Go... games and has sections where you must do this to avoid taking damage.
- Spiritual Successor: More like to Gunblade NY and L.A. Machineguns.
- Your Princess Is in Another Castle!: Whichever 2nd stage you pick, after beating the boss you find out they were merely a distraction so Megatron can begin his invasion of Chicago And even that is a distraction as he really set up his tower near the Alaskan/Canadian border where you go for a final showdown.