Random Missions

 are substitutes for Daily Challenges in Bloons Tower Defense 5 Mobile as well as Bloons Tower Defense 5 Deluxe. When you select Random Missions in the play screen, 1 of 250 missions are randomly selected and given to you. Completing Random Missions reward you with Monkey Money. If you want a new Random Mission, press the next mission button.

Easy

 * 1) A Small Selection
 * 2) A Stroll Through Death Valley
 * 3) Air and Sea
 * 4) Almost a Zoo
 * 5) Are They As Special As They Look?
 * 6) Bad Aim
 * 7) Bionic Artillery
 * 8) Blistering Sands
 * 9) Bloon Circles, Easy
 * 10) Bombs, Glue, Village
 * 11) Burning Rubber
 * 12) Castle Defense
 * 13) Castle, Easy
 * 14) Classic
 * 15) Classic BTD
 * 16) Dart Shortage
 * 17) Don't Mess Up!
 * 18) Dust
 * 19) Enhanced Bombardment
 * 20) Everyone's Special
 * 21) Extreme Farming
 * 22) Five Tiny Towers of Power
 * 23) Green Eyed Monsters
 * 24) He's a Frosty One
 * 25) High Explosive Rounds
 * Ice, Ice Baby
 * 1) Icebreaker
 * 2) Liquid Hot Magma
 * 3) Look Right
 * 4) Low Tek
 * 5) Monkey Lane, Easy
 * 6) Mortar and Tack
 * 7) Mortar in the Mount
 * 8) Mount Magma, Easy
 * 9) One at a Time, Please
 * 10) One Must Not Falter
 * 11) Park Path, Easy
 * 12) Resistance is Fruitful
 * 13) Restricted War-zone
 * 14) Ride the Lightning
 * 15) Roger That Gold Leader
 * 16) Round and Round We Go
 * 17) Slowed and Steady
 * 18) Snack River
 * 19) Sneak Attack
 * 20) Sniper Alley
 * 21) Something Blue
 * 22) Speedy Start
 * 23) Super Clock
 * 24) Support Monkeys
 * 25) Switch, Easy
 * 26) Tack Attack
 * 27) The Bloons Go One By One
 * 28) The Color of Magic
 * 29) The Forgotten Duo
 * 30) The Skewed RBE
 * 31) The Three Ninjas
 * 32) The Volcano That Time Forgot
 * 33) The Whirling Trio
 * 34) Third Time's a Charm
 * 35) Time's Up
 * 36) Watch Your Step
 * 37) We Need to Go Faster
 * 38) You've Got On The Hat

Medium

 * 1) 20 Ceramic Bloons on the Wall
 * 2) A Cold Bunch
 * 3) Across the River
 * 4) An Unlikely Trio
 * 5) Another Vintage
 * 6) Anti-MOAB Squad
 * 7) Archipelago, Medium
 * 8) B Day
 * 9) BBBB
 * 10) Beach-Side Picnic
 * 11) Black and White
 * 12) Bloonstopping
 * 13) Bombs, Ice and Fire
 * 14) Boomer-Vanced Aircraft
 * 15) Brick and Mortar
 * 16) Budget Cuts
 * 17) Building the Ark
 * 18) Bull's-Eye
 * 19) Camo, Right?
 * 20) Caught Unawares
 * 21) Chase-A-Bloon
 * 22) Circles Circles
 * 23) Close Minded
 * 24) Consider the Price
 * 25) Crazy Eights
 * 26) Crop Dusting
 * 27) Dart Monkeys a plenty
 * 28) Davy Jones Locker
 * 29) Defensive Line
 * 30) Diamond Dust
 * 31) Don't Pollute the River!
 * 32) Drowning Darts
 * 33) Explosive Ordnance
 * 34) Fibomonkey Sequence
 * 35) Fire, Water, Glue
 * 36) Four-Port Switch
 * 37) Frozen in Time
 * 38) Go Back to the Start
 * 39) Heart of the Maelstrom
 * 40) Ice and Fire
 * 41) Icebreaker
 * 42) I'm No Pro
 * 43) Import Bombs/Export Bloons
 * 44) Investment Cap
 * 45) Little Helpers
 * 46) Long Siege
 * 47) Look Left
 * 48) Lucky 7
 * 49) Mage-Gunners
 * 50) Marina Mayhem
 * 51) Martial Arts Masters
 * 52) Maul Those MOABs!
 * 53) Mechanically Inclined
 * 54) Monkey River
 * 55) Monkey See, Monkey Do
 * 56) Monkey Strike
 * 57) Mount Boom
 * 58) Nature Calls
 * 59) Near and Far
 * 60) Nine by Three
 * 61) Ninja Glue on the Farm
 * 62) Ninja Ice Bureau
 * 63) No Darts. No Tacks
 * 64) Ol' Reliable
 * 65) One Ring to Rule Them All
 * 66) One Rink to Rule Them All
 * 67) Organic Warfare
 * 68) Overzealous Explosives Disposal
 * 69) Park Path, Medium
 * 70) Pass 10 Epic Rounds with Lots o' Cash
 * 71) Pink and Yellow, Purple... Castle?
 * 72) Pirates and Ninjas
 * 73) Playing With Fire
 * 74) Pool Party
 * 75) Recognition
 * 76) Ride the Lightning: Part Deux
 * 77) Sand Sandwich
 * 78) Separation of Powers
 * 79) Shoot the Moon!
 * 80) Short Range/Long Range
 * 81) SHREDR of all Shredders
 * 82) Sit in the Corner
 * 83) Six Selection
 * 84) Skin Protection
 * 85) Special Assets
 * 86) Special!
 * 87) Special!: 2
 * 88) Special!: 3
 * 89) Specialization
 * 90) Stars On Your Head
 * 91) Storm at Sea
 * 92) Summer Time!
 * 93) Super Bomb Factory
 * 94) Supply Convoy
 * 95) Switch It Up
 * 96) Switch it Up
 * 97) Tack, Ice and a Sprinkle of Dartlings
 * 98) Tacktics
 * 99) That Took a While
 * 100) The Best Super-Glue in Town
 * 101) The Criss-Crossed RBE
 * 102) The Explosives Union
 * 103) The Glue, the BADS and the Factory
 * 104) The Monkey is Always Right
 * 105) The Monkey isn't Always Right
 * 106) The One Where Everything Explodes
 * 107) The Persistence of Memory
 * 108) The Power of Three... Types of Towers.
 * 109) The Switched RBE
 * 110) The Three Monkeyteers
 * 111) They Need to Sort Out Their Priorities
 * 112) Three by Three
 * 113) Time Goes On
 * 114) Tribal Warfare
 * 115) Two Time, Bloon Time
 * 116) Upon the Boiling Seas
 * 117) Venture into Deep Space
 * 118) Weathering the Storm
 * 119) Where'd My Towers Go?
 * 120) Where's My Favorite Upgrade?
 * 121) Wind, Plane and Glue
 * 122) ZOMG

Hard

 * 1) 31st Monkey Expeditionary Unit
 * 2) A Cool Challenge
 * 3) A Walk in the Park
 * 4) Bad Economy
 * 5) Banned: Camo Detection
 * 6) Binary RBE
 * 7) Booming in Space
 * 8) Chemical Warfare
 * 9) Cross the Road
 * 10) Darts Galore
 * 11) Eight's Unlucky
 * 12) Everything You Need
 * 13) Excuse Me, This is Our Side
 * 14) Fight Fire with Fire
 * 15) Firestorm
 * 16) Frozen Morterstrom
 * 17) Harrison's Challenge
 * 18) Home Sweet Home
 * Ice, Wind, & Fire
 * 1) Indistinguishable from Magic
 * 2) John Monkeyton's Favourites!
 * 3) One Small Step for a Monkey
 * 4) Pass All the Rounds!
 * 5) Plumb in Front
 * 6) Precision Pineapples
 * 7) Rebuild the Ark
 * Red, White and Blue
 * 1) Scrooge McMonkey
 * 2) Self-Serving
 * 3) Stealth Mode
 * 4) Stick to Your Guns
 * 5) Strapped for Cash
 * 6) Super Glue Vacation
 * 7) Super Monkey Squad
 * 8) SWAT
 * 9) That Special Bunch
 * 10) That Was Quick
 * 11) The Big Bang
 * 12) The No Aim Game
 * 13) The Weird RBE
 * 14) This Monkey's Got Deep Pockets
 * 15) Tricky Bloons
 * 16) Two by Two
 * 17) Two by Two: Part Two
 * 18) Two of a Kind
 * 19) Wait, What?
 * 20) Widespread Malfunction
 * 21) Yang
 * Yin
 * 1) You Stay on Your Side
 * 2) Icy Valkyries

Apopalypse

 * 1) Apopalypse Now
 * 2) Apopalypse Now
 * 3) FIRING MA LAZAH!
 * 4) Hard? That was Easy
 * 5) It Takes A Village
 * 6) Monkey Lane, Apopalypse
 * 7) The Four Monkeys of the Apopalypse

Deflation

 * 1) A Stroll Down Monkey Lane
 * 2) Archipelago, Deflation
 * 3) Bloon Circles, Deflation
 * 4) Deflate the Clock
 * 5) Deflated
 * 6) That's No Dart-agnan

Trivia

 * Special agents given to you for free in the challenges count towards the "Pro" count, meaning that you can place down free special agents and restart until you get the Pro agent.
 * All special agents appear in the challenges except for Radadactyl and Monkey Farmer (as they don't appear in the web version of BTD 5), allowing you to get those Pro agents for free.
 * In the vast majority of Random Challenges restrict the Bloonchipper, the Monkey Engineer and the Monkey Sub, which weren't available when the challenges were first launched in BTD5 Flash.
 * The binary in binary RBE description translates into U.