Round 4 (BTD6)

Standard

ABR

Round 4 (BTD6)
General Information
Debut	See Round 4
Appearances	See Round 4
Statistics
RBE	71
Total Cash From Pops	$71
After-Round Cash	$104
Bloon Spawn Time	17.31 seconds
Bloons Spawned	35 Red Bloons 18 Blue Bloons
IncomePer Pop	$1.0
Freeplay	No
Round Chronology
← Previous	Round 3
← Previous	Round 3
Next →	Round 5
Next →	Round 5
[Source]

Round 4 is an early-game round appearing in Bloons TD 6. It is the second round with Blue Bloons, and a notorious early-game round due to how dense the group of Blues are at such an early stage of the game.

Description

Round 4 is characterised by a seemingly normal stream of Red Bloons, before a tightly packed swarm of 18 Blue Bloons rushes in, with a few Red Bloons bringing up the rear.

Strategy

Summary

Round 4 can be considered a serious threat when compared to how early the round appears, particularly attributed to the tightly packed Blue Bloons. Given that a normal game of Impoppable and CHIMPS skip this round entirely, a standard game may require a few bloons to be leaked in order to survive. Use of Mana Shield and/or Pre-Game Prep is very recommended.

Tips

• 0-0-0 Alchemist is the single best option for handling Round 4. However, this will be harder to pull off on multi-lane maps, simultaneous or not, and even alternating lanes can cause trouble for Alchemist.
• Boomerang Monkey can beat this round with only a small amount of trouble, and almost none if given Improved Rangs.
• Sauda can single-handedly deal with this round given the map is single-lane and Sauda has enough track coverage.
• Because the Mortar Monkey does 2 damage, a single shot is enough to wipe out a lot of the densely packed Blues, albeit a bit clunky in terms of reliability without proper micro and timing.

Trivia

• Coincidentally, a BTD2 Pre-Round Comment for beating its respective Round 4 makes a comment alluding that future games could not be beaten with just Dart Monkeys. BTD6 Round 4 is really difficult to beat with just Dart Monkeys, even if a Dart Monkey is upgraded to any Tier 3 upgrade.
• The reason that C.H.I.M.P.S. and Impoppable modes start on Round 6 may be to avoid Round 4, as it is likely impossible to beat round 4 without leaking lives on expert maps.
• Round 4 may be considered the early-game version of Round 63—another infamous round—as they both feature small groups of very clumped Bloons that are surrounded by weaker, spaced Bloons.