Reach the given rank to unlock each bonus or item.

Unlockable	How to unlock
Mask: Eagle/Tragic Comedy	Rank 10
Mask: Moon/Indigo Feather	Rank 20
Mask: Octopus/Demon	Rank 40
Mask: Peacock Feather/Sun God	Rank 30
Mask: Rabbit/Goat/Pink Feather	Rank 01
Melee: Crowbar/Flashlight	Rank 30
Melee: Hatchet	Rank 40
Melee: Machete/Rolling Pin	Rank 10
Melee: Mallet/Barbed Wire	Rank 20
Melee: Wrench/Candle Stick/Pipe	Rank 01
Plasmid: Air Dash	Rank 04
Plasmid: Electro Bol/Winter Blast/Incinerate	Rank 01
Plasmid: Geyser Trap	Rank 08
Plasmid: Houdini	Rank 16
Plasmid: Insect Swarm	Rank 20
Plasmid: Telekinesis	Rank 12
Tonic: Back Stabber	Rank 11
Tonic: Big Game Hunter	Rank 36
Tonic: Deadly Machine	Rank 32
Tonic: Death Trap	Rank 38
Tonic: Expert Researcher/Security Evasion	Rank 03
Tonic: Fast Feet	Rank 30
Tonic: Headhunter	Rank 34
Tonic: Leg Up	Rank 28
Tonic: Metabolic Eve	Rank 15
Tonic: Repairman	Rank 22
Tonic: Resurrection	Rank 40
Tonic: Sabotage	Rank 19
Tonic: Slugger	Rank 26
Tonic: Speedy Recovery/Eve Saver	Rank 07
Upgrade: Crossbow Damage Increase	Rank 21
Upgrade: Crossbow Rate of Fire	Rank 35
Upgrade: Elephant Gun Damage Increase	Rank 39
Upgrade: Elephant Gun Sniper Scope	Rank 25
Upgrade: Grenade Launcher Homing Grenades	Rank 17
Upgrade: Grenade Launcher Velocity Boost	Rank 33
Upgrade: Machine Gun Kickback Reduction	Rank 31
Upgrade: Machine Gun Magazine Size	Rank 13
Upgrade: Nail Gun Damage Increase	Rank 37
Upgrade: Nail Gun Magazine Size	Rank 23
Upgrade: Pistol Automatic Firing	Rank 05
Upgrade: Pistol Damage Upgrade	Rank 27
Upgrade: Shotgun Automatic Reload	Rank 29
Upgrade: Shotgun Rate of Fire	Rank 09
Upgrade: Speedy Hacker	Rank 24
Weapon: Crossbow	Rank 10
Weapon: Elephant Gun	Rank 18
Weapon: Grenade Launcher	Rank 06
Weapon: Machine Gun	Rank 02
Weapon: Nail Gun	Rank 14
Weapon: Pistol/Shotgun	Rank 01