33.33%
Breeder Slayer 3
Kill 100 Breeders.
33.33%
Exploder Slayer 3
Kill 100 Exploders.
33.33%
Untouchable
Max out health upgrade.
33.33%
Exploder Slayer 4
Kill 200 Exploders.
33.33%
It's my pleasure
Inflict 1 000 000 total pain.
33.33%
Chaser Slayer 2
Kill 50 Chasers.
33.33%
Five hours!
Play for 5 hours!
33.33%
Serial Germ Killer
Get 200 kills in one game.
33.33%
Far away
Max out blast radius upgrade.
33.33%
Virus Slayer 3
Kill 100 Viruses.
33.33%
Powerbutt!
Max out powerbutt strength upgrade.
33.33%
Healer Slayer 2
Kill 50 Healers.