boot problem

I am straggling to boot runeudio from my rusberry pi 3b. I don't know what I am doing wrong. Can anyone help?

From Raspberry Pi version 3, anyone can boot Raspberry Pi from USBgeometry dash unblocked

I thought that you had to use the MicroSD card to boot?

Hi, did you manage to get it to start ?

Mini Militia App Lock

Raspberry Pi Not Booting? Check the Red and Green LEDs. Raspberry Pi 3B.

slope io