噴射背包

噴射背包 是一個可穿戴的背包道具，賦予穿戴者額外的空中機動：執行二段跳可提升飛行能力。啟動 噴射背包 的效果需在空中執行第二次跳躍，與一般單跳相比可延長到達高度和空中滯留時間。此裝置主要用於垂直機動和短暫的空中調整，而非持續的真正飛行。

噴射背包 可用來跨越較高的障礙、到達更高的平台，並在需要更精準跳躍軌跡的關卡中延長跳躍弧線。各語言玩家普遍回報同一運作特性：當與傳送門類型的環境互動時，噴射背包 可能出現不穩定的行為。具體而言，在進入或穿越傳送門後的瞬間，它可能無法立即反應或會間歇性地失效，因此玩家不應在傳送門轉換的瞬間依賴它來執行精確操作。

• Activation: perform a second jump while airborne to trigger the 噴射背包’s effect; this provides increased height and longer airtime compared to a normal jump.
• Portal interaction: expect initial glitches or delayed responsiveness when entering portal areas; allow a brief moment after a portal transition before relying on the 噴射背包 for critical movement.
• Practical uses: ideal for reaching higher ledges, extending horizontal jump arcs via added airtime, and negotiating platforming sequences that require a follow-up jump.
• Limitations: the 噴射背包 augments jumping but does not replace sustained flight mechanics; its behavior can vary briefly in portal environments and should be treated as a short-duration mobility aid.