head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.

Execution · Pure Mechanics
Floaty one-button momentum control in arcade altitude duels.

Execution · Pure Mechanics
Co-op physics party game about chaining grabbed hands across deadly gaps.
Balloon Fight leans Execution (Pure Mechanics); Heave Ho leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Balloon Fight
Flap-physics altitude duels demand precise momentum control
Heave Ho
Grip timing and swing physics under chaos
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Balloon Fight
A couch rival adds light prediction; birds don't adapt
Heave Ho
Friends sabotage, but it is party chaos
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Balloon Fight
Enemy drift and lightning add arcade randomness
Heave Ho
Physics wobble creates slapstick
Balloon Fight leans a little harder on optimization, though the gap is small.
Balloon Fight
Spawn patterns and safe positions are quickly mapped
Heave Ho
Levels are short and shallow to route
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.