Listeria Wars (UP)
12 Achievements
PS4
THelper Master
Upgrade the THelpers 3 times
77.1%
How to unlock the THelper Master achievement in Listeria Wars - Definitive Guide
The THelper is the fourth Immune Cell you will unlock. The first level of each upgrade costs 10 enzymes meaning you will need 30 in total to unlock the basic 3 improvements and this achievement.
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