Find every type of camouflage

Obtain the Infinity Face Paint

Finish the game on any difficulty

Catch a glimpse of Ocelot, who’s seen behind the president when he tries to shake Snake’s hand

Collect every type of snake

Call one Healing Radio frequency

Defeat Volgin

Defeat The Sorrow

Collect every type of weapon

Collect every type of bird

Sneak up on The End and hold him up

Catch a Tsuchinoko (mythical serpent)