Throughout FNF Lock-On: Sonic 3 & Knuckles mod, you will be assisted in a musical battle by your faithful friend the hedgehog, who will accompany you. To win, you will need to sing so cool to stay victorious in this battle. If you are not sure about your vocal abilities, then you can turn on the easiest mode where you can practice your skills.

In FNF Lock-On: Sonic 3 & Knuckles mod, your task is very simple, you only need to complete the level to the end, and not let the main character leave the music scene. To do this, you just need to use the arrow buttons. They will glow as you progress through the levels. And if you do not have time to complete the level, it will automatically close and you will still have a chance to complete it the next day. If you love to sing, then this game is for you! Don’t miss your chance to be the best!

FNF Lock-On: Sonic 3 & Knuckles
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