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Level Up Amplifier is a special item in Counter-Strike Online.

Overview

This item is only available after Zombie Scenario Re:boot.

A combat assistance product developed by Dr.A It will help to increase combat experience.

It can be obtained randomly by opening Dr. A's Trunk.

Normal

C4 Countdown • Reward Preview • Special Mission Reset • Votekick • Promotion reward ( KR • TW/HK • CHN • IDN • CSN:Z • VN ) • Damage Display • Channel Chat • Experience Coupon • Game Points Coupon • Short Respawn Time • HitPoint Increase • Battlefield Supply • Display Killer • Ignore Defeat • Ignore Penalty • Ignore Defeat + Penalty • Joker Character • Craft Item Duffel Bag • Duration Extender • Experience Up • Point Up • Double Up • Mileage Duffel Bag • Mileage Lottery Ticket • VVIP Pass • Weapon Lottery Ticket • Bingo Ticket • VIP Pass • Premium Moderator

Boxes

C-Box ( KR • TW/HK • CHN • JPN • SG/MY • IDN • TL • TR • CSN:Z • VN ) • Z-Box • Military • Treasure • Darkness • Xmas • Jackpot • S-Box • B-Box • J-Box • M-Box • Random • Life Weapon ( Transcendent ) • Mileage • Rare ( Halloween ) • Buff ( Class ) • Summer • Part Weapon Special • Part Item • Chest • 10th Anniversary • CSOGS • Epic • Siege • Mileage • Challenge • Settlement Support • Part Weapon Selection • FLEX • ENH • Old-Time • Z Starter • Rare Selection • Class Selection • ENH Selection

Classic • Advanced (A • B) Mileage (Crate) • Premium • Buff (A • B• C) • Package • Brand • Top 50 • Epic • Top Class • Rare • Unique • Class • Event

Event

Advance Unit's Supply Box • Reversed Map • Soccer Ball • Heart Bomb • Pumpkin Grenade • New Year Box • Silver Bell • Golden Bell • Mystery Gift • Seed • Sprout • Fruit (Harvested) • Fortune bag • Timed Bomb • Fortune Cookie • Lucky Coin • Ice Breaking • Soy's SD Zombie Maker • Baseball • Reservation Ticket • Discount Coupon • Level Up Coupon • Transcendence Piece • Gold Moon Cake • Epic Fragment • Gunsmith Toolbox

Supply Box • Zombie Point Up • Zombie Double Up • Zombie Experience Up • All Zombie Set • Floating Damage

In-game

Battle Revival • Emergency Medicine • Round Retry

Clues

Set 1	Operational Map • Damaged Equipment • Andrey's Diary • Phobos' DNA

Set 2	Siege Type's Blood • Siege Type's Frame • Siege Type's DNA

Set 3	Dione Pursuit Diary ( No.1 • No.2 • No.3 • No.4 )

Set 4	Confidential Weapons Document ( No.1 • No.2 • No.3 • No.4 )

Set 5	Frozen Terror's Mane • Gluttony's Tongue

Reboot	Confidential Documents • Secret Map • Research Tools • Zombie Sample • HP Supplement • Attack Amplifier • Bulletproof Armor • Combat Boots • Spare Magazine • Weakness Analysis Device • Level Up Amplifier

Stamina Drug • Power Amplifier • Money Extractor • Secret Research Funds

Others

Nightmare key • Poisoning key • Illusion key • Madness key • Melee Weapons License • Origin Weapons License • SD Zombie • Weakness Analyzer Season 1 • Weakness Analyzer Season 2 • Weakness Analyzer Season 3 • Dr. A's Trunk • Dr. A's Confidential Trunk 2 • Dr. A's Confidential Trunk 3

Reboot II

Venom Guard Damage Down • Zombie Grenade Damage Down

Sentry Gun • Comanche Record Device • Pilot Tag • Drone Control Chip • EXP Medals

Durability Material • Weapon Recipe • Combat Blueprint ( CSN:Z • Vietnam • Indonesia ) • Lucky Craftsman • Recycle • Recipe Exchange coupon • Perfect Pick Recipe

Tattoo • Santa hat • Costumes ( Box ) • Weapon Paint Package • Nameplate • Zombie Respawn Effect

Family Notice Expansion • Family Mark Change • Family Member Expansion • Family Name Change • Family Merger • Coloured Family Name • Bold Family Name • Family Name Background • Underlined Family Name • Stroke Family Name • Italic Family Name • Family Member Title

Nickname

Camouflaged Nickname • Nickname Change • Underlined Nickname • Nickname Background • Bold Nickname • Coloured Nickname • Italic Nickname • Stroke Nickname

Normal Enhancement Kit • Advanced Enhancement Kit • Anti-Enhancement Material • Enhancement Reinforced Parts

Night Hawk Shot • Cannon Shot • Spirit Shot • Summoning Shot • Tornado Shot

Misc

Holographic Sight • Advanced Combat Optical Gunsight • Silencer

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