The Herbicide Squirter is a limited time decoration released with the Terwilligers 2015 Event. It was available for free upon completing The Science of Cooking during Act 2 of the event.
The Herbicide Squirter was upgradable with Corn and DNA. Each upgrade increased the blast radius of the herbicide and some of them also increased the reward (Fertilizer, Corn or DNA) for squishing Bob Clones. A complete list of all upgrades, their cost and reward is presented below.
Level
Cost
Reward
1
N/A
Increased blast radius
2
60, 60
Increased blast radius, more currency from tapping Bob Clones (7 per tap)
3
120, 120
Increased blast radius
4
180, 180
Increased blast radius
5
240, 240
Increased blast radius, more currency from tapping Bob Clones (9 per tap)
6
300, 300
Increased blast radius
7
360, 360
Increased blast radius
8
420, 420
Increased blast radius, more currency from tapping Bob Clones (13 per tap)
9
480, 480
Increased blast radius
10
540, 540
Increased blast radius
11
600, 600
Increased blast radius, more currency from tapping Bob Clones (16 per tap)
12
660, 660
Increased blast radius
13
720, 720
Increased blast radius, more currency from tapping Bob Clones (21 per tap)
14
780, 780
Increased blast radius
15
840, 840
Increased blast radius, more currency from tapping Bob Clones (25 per tap [Maximum Reward])
n
( n - 1 ) * 60, ( n - 1 ) * 60
Increased blast radius
Trivia[]
When the player reached the Upgrade Level 8, a 3-Day DNA Sale was unlocked in the Store. For 25 Donuts one could purchase 700 DNA.