Twitch Glitch Pets were a Twitch-sponsored event that ran between December 4th through December 18th. During the event, Among Us players could earn a free cosmetic pet by watching 30 minutes of a Twitch Rivals Among Us Showdown show. After the half-hour period is up, you’d see a button near the bottom of the Chat panel that said “Claim.” Pressing the button and linking your Twitch account to your Among Us account via game settings unlocked the pet for game use. Unless there’s another event, the only way to get an Among Us pet now is to buy one. You can do that via in-game shop or from the Steam shop if you use that platform.