Eat to grow longer, dont' run into other snakes. when longer, hold left mouse for a speed boost. Share on facebook to unlock new skins. Slither.io Immortal Snake Hack - Can We get the World Record Score Now?. In this video I was trying to get a new world record. I was at 19k+ when I was suddenly struck by the meanest freeze glitch. Through out this slither io game-play there was trolling and epic kills attempting to reach new high scores. The slither glitch was making people move very slowly and people overlapped each other. Obviously this is a slither io glitch/hack and I eventually died :( I was so close to number 1 but I will continue on this journey to get the Highest Slither Io world record, next time with no lag or Hacks. Mods:. *IMPORTANT* You must install Tampermonkey for this Extension, Mod, Hack, Script to work. (Link below along with Extension). Slither.io Plus + Extension:.