head to head
Neither is simply harder - they are hard in different places. Spy vs Spy demands more execution; Your Only Move is Hustle demands more reads.

Reads · Pure Mind Games
A split-screen trap duel testing prediction of where your human rival hid the bombs.

Reads · Pure Mind Games
A fighting game with execution deleted, leaving pure simultaneous-turn opponent prediction.
Spy vs Spy leans Reads (Pure Mind Games); Your Only Move is Hustle leans Reads (Pure Mind Games).
Spy vs Spy leans clearly harder on execution.
Spy vs Spy
Simple movement and item fiddling under time pressure
Your Only Move is Hustle
Turn-based inputs remove the dexterity test entirely
Your Only Move is Hustle leans clearly harder on reads.
Spy vs Spy
Guessing where the rival spy laid traps is the core duel
Your Only Move is Hustle
Simultaneous turns make outguessing your specific opponent everything
Spy vs Spy leans clearly harder on variance.
Spy vs Spy
Item locations are hidden information each round
Your Only Move is Hustle
Hidden simultaneous choices resolve each beat
Your Only Move is Hustle leans clearly harder on optimization.
Spy vs Spy
Trap-and-counter knowledge forms a learnable layer
Your Only Move is Hustle
Frame knowledge and spacing math anchor the prediction game
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.