Given that 2021 has passed, many links are now dead. However, for archival and research purposes, here is how the search worked in 2021, and how to find functional versions today.
A legitimate question for 2021 searchers: Are these sites safe?
Because "unblocked" sites operate in a gray area, caution is required. In 2021, many websites hosting the "99999" version were legitimate HTML5 embeds. However, some were ad-ridden nightmares. iron snout unblocked 99999 2021
Safety Checklist for 2021 (Still relevant today):
If you cannot access normal gaming sites, savvy 2021 players used URL shorteners (like bit.ly) to mask the direct game link. You would search for "Iron Snout unblocked 99999 2021 pastebin" to find raw links. Given that 2021 has passed, many links are now dead
Weapons – Enemies drop cleavers, axes, and clubs. Pick them up by walking over them. You can throw them with L or use them for stronger melee attacks.
Juggling – Jump and attack repeatedly to keep enemies in the air, preventing them from attacking. Weapons – Enemies drop cleavers, axes, and clubs
Watch your back – Enemies spawn from both sides. Don’t get cornered.