Write their own, follow the fruit ninja source code, interested can look at

ProjectSettings\AudioManager.asset
ProjectSettings\ClusterInputManager.asset
ProjectSettings\DynamicsManager.asset
ProjectSettings\EditorBuildSettings.asset
ProjectSettings\EditorSettings.asset
ProjectSettings\GraphicsSettings.asset
ProjectSettings\InputManager.asset
ProjectSettings\NavMeshAreas.asset
ProjectSettings\NetworkManager.asset
ProjectSettings\Physics2DSettings.asset
ProjectSettings\ProjectSettings.asset
ProjectSettings\ProjectVersion.txt
ProjectSettings\QualitySettings.asset
ProjectSettings\TagManager.asset
ProjectSettings\TimeManager.asset
ProjectSettings\UnityAdsSettings.asset
ProjectSettings\UnityConnectSettings.asset
Assets\main.unity
Assets\main.unity.meta
Assets\Materials\apple.mat
Assets\Materials\apple.mat.meta
Assets\Materials\bgmat.mat
Assets\Materials\bgmat.mat.meta
Assets\Materials\bomb.mat
Assets\Materials\bomb.mat.meta
Assets\Materials\bubble4.mat
Assets\Materials\bubble4.mat.meta
Assets\Materials\bubble5.mat
Assets\Materials\bubble5.mat.meta
Assets\Materials\bubble6.mat
Assets\Materials\bubble6.mat.meta
Assets\Materials\Fairy Dust.mat
Assets\Materials\Fairy Dust.mat.meta
Assets\Materials\lemon.mat
Assets\Materials\lemon.mat.meta
Assets\Materials\splashflat1.mat
Assets\Materials\splashflat1.mat.meta
Assets\Materials\trail.mat
Assets\Materials\trail.mat.meta
Assets\Materials\watermelon.mat
Assets\Materials\watermelon.mat.meta
Assets\Materials.meta
Assets\Models\apple.FBX
Assets\Models\apple.FBX.meta
Assets\Models\lemon.FBX
Assets\Models\lemon.FBX.meta
Assets\Models\Materials\01 - Default.mat
Assets\Models\Materials\01 - Default.mat.meta
Assets\Models\Materials.meta
Assets\Models\plane.FBX
Assets\Models\plane.FBX.meta
Assets\Models\watermelon.FBX
Assets\Models\watermelon.FBX.meta
Assets\Models.meta
Assets\Prefabs\apple_a.prefab
Assets\Prefabs\apple_a.prefab.meta
Assets\Prefabs\apple_b.prefab
Assets\Prefabs\apple_b.prefab.meta
Assets\Prefabs\Bomb.prefab
Assets\Prefabs\Bomb.prefab.meta
Assets\Prefabs\Fireworks.prefab
Assets\Prefabs\Fireworks.prefab.meta
Assets\Prefabs\lemon_a.prefab
Assets\Prefabs\lemon_a.prefab.meta
Assets\Prefabs\lemon_b.prefab
Assets\Prefabs\lemon_b.prefab.meta
Assets\Prefabs\SplashFlatGreen.prefab
Assets\Prefabs\SplashFlatGreen.prefab.meta
Assets\Prefabs\SplashFlatRed.prefab
Assets\Prefabs\SplashFlatRed.prefab.meta
Assets\Prefabs\SplashFlatYellow.prefab
Assets\Prefabs\SplashFlatYellow.prefab.meta
Assets\Prefabs\SplashGreen.prefab
Assets\Prefabs\SplashGreen.prefab.meta
Assets\Prefabs\SplashRed.prefab
Assets\Prefabs\SplashRed.prefab.meta
Assets\Prefabs\SplashYellow.prefab
Assets\Prefabs\SplashYellow.prefab.meta
Assets\Prefabs\watermelon_a.prefab
Assets\Prefabs\watermelon_a.prefab.meta
Assets\Prefabs\watermelon_b.prefab
Assets\Prefabs\watermelon_b.prefab.meta
Assets\Prefabs\watermelon_c.prefab
Assets\Prefabs\watermelon_c.prefab.meta
Assets\Prefabs\watermelon_d.prefab
Assets\Prefabs\watermelon_d.prefab.meta
Assets\Prefabs\watermelon_e.prefab
Assets\Prefabs\watermelon_e.prefab.meta
Assets\Prefabs.meta
Assets\Scripts\EndLevelScript.cs
Assets\Scripts\EndLevelScript.cs.meta
Assets\Scripts\FruitDispenser.cs
Assets\Scripts\FruitDispenser.cs.meta
Assets\Scripts\GUIManager.cs
Assets\Scripts\GUIManager.cs.meta
Assets\Scripts\MouseControl.cs
Assets\Scripts\MouseControl.cs.meta
Assets\Scripts\ObjectKill.cs
Assets\Scripts\ObjectKill.cs.meta
Assets\Scripts\ParticleDestroy.cs

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