NATURE · CURIO CARD 21 / 48
Geyser
hot spring characterized by intermittent discharge of water ejected turbulently and accompanied by steam. This source-backed topic becomes an original Cascade swarm challenge.
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Play Geyser
Staggered rows enter at different heights and alternate their shots. Change horizontal lanes before the next row reaches the ship.
Signature: Vertical Jet. One jet follows the other. Wait for both before crossing back. This is fictional battle design, not a claim about the real subject.
Source: Wikidata Q83471 · English Wikipedia topic. Summary: Wikidata CC0 description. Wikidata structured data is CC0; no article prose or photographs are copied here.
Default challenge: v2 rules, seed 259381. A shared link can carry another valid seed. Automatic weapon upgrades do not count as assistance; deliberately claiming the Super Weapon counts one and guarantees a clear.
How this card plays
Staggered rows enter at different heights and alternate their shots. Change horizontal lanes before the next row reaches the ship. The first warning introduces Vertical Jet. Later volleys alternate between that signature and the formation pattern. Survive three waves to earn a clean clear, or take one free assisted clear.