What type of unique are we talking here. Unique as in a beautiful individual snowflake or unique as in Bananaking uniqueHave you ever played a game where you're a cube?
I'd say that's somewhat unique.
Now imagine a game where you're a cube and there are two jump buttons.
I'd say that's unique.
How about a game where you're a cube, there are two jump buttons, there are two health bars, the d-pad rotates you, weapons are cubes, weapons are simultaneously shields, doing damage to the enemy often helps the enemy, suicide is sometimes beneficial, the camera is a mix of first/third person, low ground is more advantageous than high ground, decoy cubes exist throughout the world, and platforming feels like pong.
I'd say that's VizionEck Cube Royale.