平台跳跃
平台跳跃（英：Platforming）是Deltarune第五章引入的游戏机制，覆盖花之王国。该机制由花园尽头获取的花瓣羽毛解锁。
激活转面雕像后，游戏视角会从俯视角度变为横版卷轴平台，能够让小队探索额外区域，并且会获得一些在一般模式下无法获得的宝箱。平台跳跃中的跳跃和攻击的操作按钮可以交换。
在这种模式下，小队闲置时会有动画。像门这种物品尽管是可见的却无法互动，存档点也是不可见的。
人物的头像与对话会在一个特有的的对话框中，而不是经典的暗世界对话框。这种特有的对话框是以黑色为底色且略微透明。
在平台跳跃的模式下，玩家无法步行只能跑步。物品栏、装备、状态和设置都只能与蓝色柜子互动使用。
Flowery币可以在该模式中通过拾取或破坏物体（例如草和悬挂的铃铛）来获得。
如果小队在悬崖处下落，他们的HP不会减少。如果下方没有物体支撑，他们会被风吹回至上一次的所在位置
在平台跳跃模式下，所有小队成员都拥有独特的行动。可互动的物体会用发光的圆圈来指示哪个成员可以行动：青色指Kris ，紫色指Susie ，浅绿色指Ralsei。
Susie和Ralsei一般都会遵照Kris的指令，但一次在花之城堡顶楼的长途平台跳跃路程中，Susie和Ralsei会在Kris操作失败足够的次数之后自动进行各自的行动，这也是一个特例：Susie和Ralsei不遵照Kris的指令下独自进行各自的行动。
【确定键[note 1]】 - Kris会用自己的剑来攻击，在一定的攻击范围内伤害任何事物或者与物体交互（例如花朵、藤蔓等）。
在地面上，通过按住确定键可以使Kris进行最多三次连续攻击，或者点击一下进行一次攻击，其中第三次攻击的范围会略微变大。进行一次地面攻击时，Kris不能移动。
在空中， Kris会进行一次翻滚攻击，会破坏或伤害周围的一切，进行此操作两次会做一次高跳跃。
【取消键 [note 2]】- Kris会进行跳跃。跳跃高度是由按钮按住时长所决定的。Kris最高可以跳出3个格子的高度。
(如果玩家与蓝色柜子进行交互，跳跃和攻击的按键可以在设置中进行替换)
离开地面但未进行跳跃后，仍有一段宽裕的“土狼时间”允许起跳。此机制适用于所有非主动跳跃导致的离地情况，包括让Ralsei移动至其他平台，或从弹跳花上弹起的情形
【菜单键】——当Kris使用“行动（ACT）”时，大部分移动会完全暂停。此时可通过ACT菜单向Susie或Ralsei下达指令，或选择可互动对象。ACT激活后，灵魂显现，Kris身上出现青色轮廓，可使用方向键选择行动指令。ACT菜单会减缓限时事件的计时（如Hopschef的“酸面团小游戏”），但不会将其完全停止。此外，在开启平台跳跃功能时，这也是唯一能与蓝色衣柜互动以打开菜单的方式。
S行动 - Susie会释放一个能够穿墙的追踪型粗暴碎击并且可以伤害敌人，在使用期间有4秒钟的冷却时间。
- Ralsei掉落 - 使Ralsei从悬挂他的东西当中脱落下来。
- 水果碎击 - Susie会砍下树上的水果，将果汁颗粒洒向小队，然后吃掉
- 眩晕碎击 - 使敌人眩晕几秒钟。
- 一般碎击 - 对敌人造成伤害。它只会作用在Aqua的特定弹幕模式、移向玩家的书本变体弹幕模式以及Yellow的“超级惩罚枪”特例，并且会取代眩晕碎击。
- 铃铛碎击 - 破坏会掉落Flowery币的悬挂铃铛，但不能用在会掉落粉钱的粉色铃铛上。
- 面团碎击 - 破坏Hopschef挑战中的面团圆片。
- 花之碎击 - 激活闭合的弹跳花，允许Kris攻击他们并从他们身上弹出去。
- 左/右旋转 - 使风车在特定的方向旋转，改变风向。
R-Action - Ralsei wraps his scarf around an object and himself, letting him act as a platform. When hanging from objects suspended in the air, his weight causes it to drop down, allowing easier access to other objects or to expose a weak point. If Ralsei falls off a hookable object and there is visible ground underneath him, Ralsei goes splat, which has a 4-second cooldown. If Ralsei is offscreen or far enough from Kris, he reappears in the party.
- Hook - hook onto vines. As this occurs, his head follows Kris's position.
- Hookflower - hook onto the stems of the flowers near the Netskie area.
- Hang (Umbrella) - Ralsei hangs off the sticks of the umbrellas.
- Glasses - Ralsei hooks onto Seth's bullet pattern glasses.
- Dog - The Annoying Dog hooks onto the second-to-last hook in the platforming section leading to bromide-drawing-room at Top of Castle. This ACT disappears after the Annoying Dog has been jumped on once.
The battle system is instead in real-time versus the bullet patterns, where moving, jumping, and attacking must be done to avoid damage. For the remainder of the fight, the camera gets locked in a fixed position with a bullet board encompassing the combat area, with the typical black vignette in the background. Similar to overworld gameplay, the SOUL becomes visible and Kris gains a red outline around them, with a checkered diamond background overlapping their sprite. If the SOUL gets hit, the entire party receives damage.
Regular enemies such as Leafling still trigger a normal turn-based encounter instead.
- Vine: blocks the path, but the party can stand on uncut parts. It can be cut with Kris's sword. A vine quickly regrows on its own.
- Bounce flower: launches the entire party in a direction depending on the flower. Blue with arrows launch the party at a set direction, while yellow with a target launches in the direction they were attacked from.
- Giant yellow flowers: Ralsei can hook onto them and bring it lower. The wind gust can move the flower's position.
- Blue roses: the red pulsing spikes around it damages the party. Often stacked in a line, though Kris's ground attack can destroy two, and a midair attack can destroy three. It respawns after exiting the room it appears in.
- Umbrellas: floating Darkners that serve as platforms. They can be bounced on to reach higher areas, with an increased bounce height if the [X] is pressed just before landing. Some umbrellas possess a hook on the bottom which can be latched onto by Ralsei.
Throughout the Flower Kingdom, Mysterious Statues can be found to change the gameplay back to regular or platforming. These "mysterious statues" are initially inactive until the Petal Feather has been obtained. When active, it resembles the Delta Rune emblem.
Mysterious Statues cannot be activated if Kris has a watering can on their head.
| Area | Description | Image |
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| Garden | ||
| Hopschef's room | Path goes to first dash path and Tropical Starwalker Bird | 
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| First dash path | Reachable by going south of the Ideal Diner. Path goes to Hopchef's room and Tropical Starwalker Bird's room. | 
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| First dash path | Only reachable by platforming, leads to Tropical Starwalker Bird's room. | 
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| Way Home | North of the SAVE point, requires climbing to get to. Path goes to the Shrine. | 
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| Way Home | In the room east of the SAVE point. Beanstalk path goes to the Cliffs. | 
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| Shrine | Appears after collecting the Petal Feather, path goes to Way Home. | 
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| Cliffs | ||
| Beginning | Reachable by platforming from Way Home, climbing from the Beginning's SAVE point. Path goes both ways. | 
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| Flower Castle | ||
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| Zen rock path, west wing |
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| Yellow's show, west wing |
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| Yellow's show, west wing |
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| Top of Castle | ||
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While the general platforming mechanic was created by Toby Fox himself, the bounce flower mechanic was created by Taxiderby.[1]
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Kris的待机动画 -
Susie的待机动画 -
Ralsei的待机动画 -
Kris的奔跑动画 -
Susie的奔跑动画 -
Ralsei的奔跑动画 -
未激活的转面雕像，两翼收缩 -
Kris平台跳跃动作的草稿，作者Temmie Chang
- 落地时按【↓】键会使Kris的站位降低1像素。这可能致敬了《铲子骑士：无尽宝藏》，该作中的可玩角色均会对该输入产生相似的反馈。