Kingdom Rush Frontiers
87 Achievements
96,500 XP
Google Play
Impatient
Call a wave within 3 seconds of the icon showing up.
500 XP
58.6%
How to unlock the Impatient achievement in Kingdom Rush Frontiers - Definitive Guide
ColossalHavoc
TrueAchievements
TrueAchievements
Can be done on the first mission. Pay attention to the wave icon on the right side of the screen and just click it as soon as you see it. If you mis-time it, just wait for the next wave to pop up and click the icon quickly once it shows up again.
