Why my sprite looks bad in browser?

DISCONNECTED - Soundtrack | Space. Hi! this is my soundtrack for my Opera GX Game jam game. The music is maded by me. (Sorry for the Filmora water mark again!) Enjoy! (Maked with FamiTracker. Music maded by UPL.)

Coming to Opera GX Game Jam... (Sorry for that Filmora thing)

My game in 50 seconds #indiedev #Gamedev #steam

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I've created a new form of parkour in Weefager! What do you think?

4 Players in search of Wi-Fi. #OperaGXGameJam #GameMakerStudio2 #DISCONNECTED #OperaGXBest #UFO

🆕🔥New mechanic! Place wet souls into sponges to cool down scorching terrain and make your way through!

Smile! Here, take some happy pills! ✨💊 #Blender #3DModelling #3DArt Buy me a Ko-fi: https://ko-fi.com/barbarafb_

Updated the chest in the maze, adding sound, particles and better animation. But what's in the chest?