Game feel (juice)

The difference between a mechanic that works and one that feels good is feedback: the layered, slightly-exaggerated response an action provokes. This skill covers the engine- neutral techniques, screen shake, hit-stop, easing, squash & stretch, knockback, and stacked feedback, and tells you how to apply them without burying the underlying simulation. It adds polish on top of an existing mechanic; it does not implement the mechanic.

When to use

• Use when an action (hit, jump, dash, pickup, death, button press) is mechanically correct but feels weak, weightless, or unsatisfying, and you want it to feel responsive and punchy.
• Use to add screen shake, hit-stop/freeze frames, eased motion, squash & stretch, knockback, flashes, or to layer multiple feedback channels onto one event.
• Use to decide how much juice is enough and where it crosses into noise.

When not to use: for the raw controller math (jump height, coyote time) use the platformer genre and the engine movement skill. For camera follow/deadzone/orbit framing use camera-systems (this skill only triggers the shake). For mixing, ducking, and adaptive music use audio-design. For shader-based dissolves/flashes use shader-programming and the engine shader skill. For the concrete tween/particle node APIs, use the engine animation skill (godot-animation, unity-animation).

Core principle: feedback is layered and exaggerated

One satisfying hit is usually 5, 8 tiny responses firing together within ~100 ms: a sound, a particle burst, a brief hit-stop, a flash, a knockback, a small screen shake, and a number popping up. Each is cheap; stacked, they read as "impact". Two rules keep it from becoming a mess: (1) exaggerate briefly and return to rest (juice is transient, not a new resting state); (2) scale juice to event importance, a footstep is not a boss death.

Core workflow