Balloons Tower Defence 4 Walkthrough: 2nd Intermediate Track on Hard.

The following is a walkthrough of the second Intermediate track on hard setting for Bloons Tower Defence 4. There are 75 waves of bloons, and you have 100 lives to defeat the level. As you can see from the screen, there are four entry/exit points even though the bottom left hand avenue is not used as an entry point.

This guide takes you from the start of level 1 all the way through to level 75 on the hard setting. In the top left hand corner of the screen, you will notice that you can purchase premium upgrades, however, click on it and you will find that the ‘Frag bomb’ upgrade is free, you should make sure you download this as it is very helpful to level completion.

The Walkthrough

With this walk through you should not take everything as gospel, even though ‘set’ levels are detailed below if you can afford to buy or upgrade a tower mid level then make sure you do this, this ensures some damage limitation on harder rounds.

Round 1

Build Tower Monkey in the centre of the screen

Round 3

Sell tower monkey and replace with cannon, set the cannons target priority to strong.

Round 5

Buy a dart monkey and place next to cannon. Upgrade the monkey to piercing darts.

Round 8

Upgrade the cannon to bigger bombs.

Round 11

Sell dart monkey, and buy another cannon to replace the monkey. Set the second cannons target preference to strong.

Round 13

Upgrade second cannon to bigger bombs, be vigilant on this level, there may be a Bloon or two that slips through, you should keep an eye on the yellow bloons to ensure none of them go through, stop them with road spikes.

Round 14

Upgrade second cannon to longer range.

Round 15

Buy a glue gunner and place to the left of cannon 1. Set its target priority to strong.

Round 16

Upgrade glue gunner to sticker glue.

Round 17

Upgrade glue gunner to glue soak.

Round 18

Upgrade glue gunner to corrosive glue.

Round 19

Upgrade central cannon to missile launcher.

Round 20

Upgrade second cannon to missile launcher.

Round 21

Build dart monkey and upgrade to piercing darts. Place just above cannon 2.

Round 22

Buy dart monkey and place just above glue gunner.

Round 23

Upgrade second dart monkey to piercing darts.

Round 24

Camo Balloon round; ensure you place road spikes in front of the bloon as none of your current equipment has the upgrades to spot a camo balloon.

Round 26

Sell both dart monkeys. Replace with two ice towers, which should be placed either side of the central path. Upgrade them both once.

Round 27

Upgrade both ice towers again.

Round 28

Upgrade either ice tower to snap freeze. Beware of this round on Balloons Tower Defence 4 as Bloons will seep through; pick them off with road spikes.

Round 29

Upgrade the other ice tower to snap freeze.

Round 30

Buy another glue gunner and place to the right of the cannons. Set the target priority to strong.

Round 31

Upgrade the second glue gunner to glue soak.

Round 32

Upgrade the second glue gunner to corrosive glue.

Round 33

Buy a cannon (upgrade to bigger bombs), and place in the middle of the top right circle. Ensure you use the road spikes well in this round, as it is another camo bloon round. If you have low funds ensure that the first spikes you lay are on the central road, this ensures that when the cannon fires and pop some other camo bloons.

Round 34

Upgrade cannon in the top right hand corner to longer range and missile launcher.

Round 36

Buy a Cannon and place in the centre of the bottom left circle. Upgrade to bigger bombs and longer range.

Round 37

Upgrade the cannon in the bottom left hand corner to missile launcher.

Round 38

Buy two more cannons and place in both the top left and bottom right circles in the centre.

Round 39

Upgrade both cannons to missile launchers.

Round 40

Buy two more ice towers and place them next to the two ice towers already on the map, upgrade them both to improved ice tower and permafrost.

Round 41

Buy a Banana farm and place in the top centre of the screen, upgrade to more bananas.

Round 42

Upgrade all ice towers to snap freeze. Buy two more ice towers and place them next to pre existing ice towers. Upgrade them both to improved ice tower, and permafrost.

Round 43

Upgrade both remaining towers to snap freeze and upgrade your banana farm to banana plantation.

Round 44

Buy three more cannons and place them on the inside track of each circle as so:

Set three new cannons to target strong bloons.

Round 46

Buy the forth cannon to complete the set. (Set these four cannons to priority last) Upgrade all new cannons to bigger bombs, longer range, and missile launcher. Then move on to upgrading all ‘outside’ cannons to Moab maulers, starting with the cannon in the top right and then the bottom right of the screen.

Round 48

Upgrade the two remaining ‘outside’ cannons to MOAB maulers. Buy a mortar tower and set the target to below and upgrade to greater accuracy. This next round is another round with Camo bloons; make sure that you hit a couple of them with road spikes to start the carnage!    

Round 49

Sell the two cannons in the centre of the screen. Buy a super monkey, upgrade to super range and set priority to strong.

Round 48

Upgrade the two remaining ‘outside’ cannons to MOAB maulers. Buy a mortar tower and set the target to below and upgrade to greater accuracy. This next round is another round with Camo bloons; make sure that you hit a couple of them with road spikes to start the carnage!    

Round 49

Sell the two cannons in the centre of the screen. Buy a super monkey, upgrade to super range and set priority to strong.

Upgrade the mortar tower to rapid reload and Bloon buster.

Round 50

Buy a second mortar tower and place near the first one, set the target to below:

Upgrade the mortar tower to Bloon buster.

Ensure all MOAB mortars are targeting strong.

Round 51

Upgrade super monkey to laser vision.

Round 53

Upgrade either one of the glue gunners to glue splatter.

Round 55

Upgrade the other glue gunner to glue splatter.

Round 57

Upgrade the Super Monkey to plasma vision.

Round 60

Buy another super monkey place it next to your other one, and upgrade to super range.

Round 63

Place a monkey beacon just above the second super monkey. Upgrade it to wider influence, then jungle drums and sonar beacon.

Round 64-65

Upgrade the two cannons up the top to MOAB maulers as soon as you can during level 64.

Round 66

Upgrade the remaining two cannons to MOAB maulers, set all cannons to target strong.

Round 68 – 69

Upgrade super monkey 2 to laser vision.

Round 69-70

Upgrade super monkey 2 to plasma vision.

Round 70

Sell the two mortar tower and build another super monkey above super monkey two.

Rounds 71-75

For the remaining levels upgrade super monkey 3 to plasma vision, when you have the money build another super monkey below super monkey 1 and upgrade to plasma vision. This will give you enough to complete the final levels.

With this Balloons Tower Defence 4: Intermediate track on hard walkthrough (as detailed above) you will lose lives, but you should be able to stop the majority of these ‘strays’ early on with strategically placed road spikes. After finishing level 75, you should continue to play in free-play mode. If you decide to do this then keep buying and upgrading super monkeys in place of, or in addition to, some of the cannons that you have on the screen, however, do not remove all of the cannons especially the MOAB maulers.