G-Force
44 Achievements
PS3
NanoHack Expert
Defeated 50 enemies using NanoHacked enemies
3.5%
How to unlock the NanoHack Expert achievement in G-Force - Definitive Guide
Some good enemies to Nanohack are the flying ones when there are smaller enemies on the ground. If you just remember to use this whenever you have ammo for it it shouldn't be a problem getting this on your first playthrough. However if you don't get the 100 kills in your first playthrough, the kills will carry over to your second playthrough.