The game's meta-humour begins with the actual protagonist being an unnamed, unseen Chairorpian, a member of the humanoid species who never leave their seat, and who puppeteers the titular Trover through the same sort of gamepad you would be using to play the game in real life. You are doing this in order to retrieve the two dogs stolen by Glorkon the Abstainer, who placed them into his eyeholes in order to finally gain the power he needs to fulfil his dream of destroying the universe. The other Abstainers are not cool with that, however, and so they provide Chairorpian with Trover, as there's nothing better than an Eyehole Monster for freeing your dogs.
It only gets weirder from there.
Tropes present in Trover Saves the Universe:
- Alien Sky: Some planets have a green sky.
- And Your Reward Is Clothes: ...not quite. If you manage to reach 100% Completion through finding all of the green power babies, the end of the game will have Trover trigger your controller's rumble pack. At maximum. Helpful hints will be provided on where to hold it.
- Anti-Frustration Features: Whenever Trover is jumping, a marker will appear to show where he'll land.
- Bad with the Bone: Many of Glorkon's clones fight you with bone swords - as in, they wield a Stock Femur Bone that doesn't appear to be sharpened at all, with a small version of one acting as a crossguard.
- But Thou Must!: All of the sidequests. No matter what you do, you will wind up trying to rescue pets and recover siblings. And they are always going to die.
- Charged Attack: One of the power babies grants this ability.
- Dialogue Tree: There are moments where you get to answer with yes and no, and the dialogue will branch as a result. There'll also be minor consequences later on in the game.
- Double Jump: One of the skills Trover can get by placing the right power baby into his eyehole.
- Expendable Clone: Glorkon fully embraces the trope, as most of the enemies you face are his clones of some sort.
- Gotta Catch 'Em All: The green power babies. And later in the game, the black ones. You need to get every last one of them if you want to see the bonus ending, but they're not always easy to spot. Prepare to slice through every bush, peek behind all the corners, and stare at the game's environment until your eyes start to cross.
- Grievous Harm with a Body: Your final weapon/tool in the game? Trover's severed head.
- Kill 'Em All: In the end, everyone you "help" dies, and during Glorkon, Trover gets his head torn off, and using said head, use it kill Glorkon, but the explosion kills you as well. This is shown after the battle, and everyone that died is now in heaven.
- Laser Blade: Trover wields what essentially amounts to a purple lightsaber.
- Living Battery: Glorkon kidnapped the dogs so that he can use them in this manner. Trover does the same with the power babies. In both cases, it only works when placed in a being's eyeholes. Moreover, since power babies grant Trover his unique abilities, and he only has two eyeholes, swapping one for the other including the baby being replaced getting eaten by the one you put in its stead.
- Love Makes You Evil: Glorkon's motive is to create his "one true love".
- Never Trust a Title: Let's just say that the universe winds up as the opposite of saved. Everyone's okay with this.
- Rare Candy: Green power babies add additional hearts to Trover's health bar once enough have been collected.
- Shield-Bearing Mook: Some of Glorkon's clones carry spiky shields.
- Sir Swears-a-Lot: Pretty much everyone swears a ton.
- Sword Lines: Purple lines appear through the air whenever Trover swings his weapon. Justified, since it's essentially a purple lightsaber.
- Teleporters and Transporters: The warp pods act as these.