Signal Cascade

A nerve impulse travels left to right along the axon, passing receptor gates. Fire when the pulse reaches an excitatory gate whose key matches your tuned key (shown top-left). Hold back at red inhibitory gates and at any gate whose key doesn't match. Correct fires build a combo that raises a score multiplier; mistakes break the chain. It's a fast reaction game dressed as a trip through a neuron.

• Match the tuned key, firing at the wrong key or an inhibitory gate costs you.
• Longer chains raise the synapse multiplier.
• Accuracy and best chain are tallied at the end.

• Desktop: press Space or click to fire.
• Phone & tablet: tap anywhere to fire, fully touch-friendly.

• Daily: a shared seeded run.
• Practice: a slightly easier randomized run.

• Glance at your tuned key constantly, it's the difference between a release and an inhibition.
• Resist firing at every gate; the held-back decoys are where chains are lost.

Signal Cascade is a timing game themed on how neurons fire across synapses.

• Skills: the nervous system, neurons and synapses, reaction
• Best for: roughly grades 6–11 (ages 11–16)
• For parents & teachers: how nerve signals travel.

A pulse travelling an axon past receptor gates you must fire at the right moment is the action potential and synaptic transmission.

Requiring the timing rather than the mechanism is the original emphasis.

Timing is the mechanism. An action potential is all-or-nothing and self-propagating, so information is carried in when spikes arrive rather than how strong they are — which is why a neuron firing slightly early or late changes the message entirely.

Signal Cascade is a timing and reaction game themed on how neurons fire across synapses. It's an original free browser game made for PlayPendium.

A free, original browser game on PlayPendium. No download, no install.