サンハーバー防衛線：エンドレス

A standalone endless challenge on the sixth harbor map. New runs start with 140 coins and 20 lives; each settled wave restores one life, up to 100. Regular pressure, surge waves, major assaults every ten waves and brief recovery periods alternate. From wave 70, enemy numbers and advanced formations grow, and leaders resist repeated stuns. Initially build one laser and one missile tower. A second laser unlocks when wave 101 begins; a second missile unlocks when wave 201 begins. Fission Beetles arrive at wave 70 and eventually split into up to 16 tougher descendants, which grant no bounty. Prism Haulers arrive at wave 108 with heavy hulls and three shield sections. Frost Support Cruisers arrive at wave 130, repairing nearby aircraft below half health to 80% once per ally and freezing three to six distinct towers during each flight. Green repair effects and blue ice distinguish their abilities. Separate saves and rankings track consecutive cleared waves. Long sessions automatically protect local progress and confirm saves while connected. Split offspring move at 90% of the root speed. Carrier offspring have 45% of their parent’s health; Beetles gain 4% health per generation.

A gradual opening: ordinary hull health is about 75–80% of the previous curve through wave 30, with gentler leaders at 20 and 30. Through wave 10, automatic waves wait for a clear field and two seconds of preparation; manual early starts remain available. At most two waves overlap through 30, three through 50, then four. No splitting enemies appear through wave 50. Armor and air spikes are lighter, and replacement units retain their original slot bounty. Full assault rhythm returns at 51; relief tapers until regular hull health returns at 60. Ordinary Wings have a base reward of 5 coins.

武器欄で選んでからマップを押すと購入・配置します。建物は2×2マスで、2本の地上ルートを必ず残してください。建造済みの武器を選ぶと強化・売却でき、強化中と凍結中は攻撃が止まります。数字キーで武器選択、スペースで一時停止、Nで次のウェーブを早く開始。メニューと一時停止画面に武器・敵機図鑑があります。高レベルの強化は高価なので強い波に備えて資源を残しましょう。売却時は実際の投資額の半分が戻ります。ライフの上限は100で、貯めたライフだけで敵の突破をいつまでもしのぐことはできません。進行状況は自動保存され、再読み込み後も防衛を続けられます。接続異常時は保護のため停止し、復旧後に再開。旧セーブを続ける場合、ウェーブ数・コイン・配置は引き継ぎ、ライフを新上限に合わせ、新編隊は次のウェーブから反映します。