* https://www.flaticon.com/free-icons/trashcan
* https://www.flaticon.com/free-icons/robot
* https://www.flaticon.com/free-icons/arrows
* https://www.flaticon.com/free-icons/magnifying-glass
* https://www.flaticon.com/free-icons/pixel
* https://pixabay.com/music/beats-glossy-168156/
* https://www.motionelements.com/zh-hant/stock-music-29505931-acoustic-indie-folk-full
* https://assetstore.unity.com/packages/audio/sound-fx/footstep-snow-and-grass-90678
* https://assetstore.unity.com/packages/2d/environments/pixel-art-top-down-basic-187605
* https://assetstore.unity.com/packages/2d/environments/pixel-art-platformer-village-props-166114
* https://assetstore.unity.com/packages/2d/characters/pet-cats-pixel-art-pack-248340
* https://www.motionelements.com/zh-hant/sound-effect-20707738-bionic-alien-talk-3
* https://fonts.google.com/noto/specimen/Noto+Sans
