diff --git a/docs/balloons/default.md b/docs/balloons/default.md
index 2e1995d2..be50f3e3 100644
--- a/docs/balloons/default.md
+++ b/docs/balloons/default.md
@@ -12,10 +12,10 @@ class Default {
   +spawn_chance: number$
   +<< get >>name: string
   +<< get >>options: BalloonOptions
-  +<< get >>balloonImageUrl: string
-  +<< get >>popSoundUrl: string
   +balloonImage: HTMLImageElement
   +popSound: HTMLAudioElement
+  +<< get >>balloonImageUrl: string
+  +<< get >>popSoundUrl: string
   +constructor()
   #originalPath(path: string) string
   +build() void
@@ -28,34 +28,12 @@ class BalloonOptions {
   dir_name: string
   imageUrl: string
   popSoundUrl: string
+  size: [number, number]
   riseDurationThreshold: [number, number]
   swingDurationThreshold: [number, number]
+  swingOffset: number
+  waveDegrees: number
 }
 
 Default <|-- BalloonOptions
 ```
-
-## Inheriting
-
-To create a new balloon, extend the `Default` class and implement the abstract methods.
-
-```ts
-class Example extends Default {
-  public static readonly spawn_chance: number = 0.25;
-  // @ts-ignore
-  public get name(): 'example' {
-    return 'example';
-  }
-
-  public get options(): BalloonOptions {
-    return {
-      ...super.options,
-      // Override options here
-      // e.g. the image url
-      imageUrl: 'example.svg',
-    };
-  }
-}
-```
-
-In this example the `Example` class extends the `Default` class and overrides the `spawn_chance`, `name` and `options` properties. The options property overrides the image url to `example.svg`. Pop-a-loon will look for this `example.svg` file in the `resources/balloons/example` directory.