Keydrop Battle is a js script made for joining free keydrop battles automatically.
Open your browser and hit
F12 Then press the console button. Its right to "Elements"
Go to https://key-drop.com/en/case-battle/list Open your console Paste the code into your console, once a new battle appears it will auto-join it, you will just have to press the second join button
You need to open the js with notepad so you can copy the code!