Kill three infected with one shot.
Kill two infected with one shot.
Kill four infected with one shot.
Kill five infected with one shot.
Kill one hundred civilians.
Kill a civilian.
Earn 200 coins in a single run.
Earn 300 coins in a single run.
Earn 500 coins in a single run.
Earn 400 coins in a single run.
Kill one hundred infected with melee.
Kill one thousand infected with melee.
Kill one thousand infected with primary weapons.
Kill one hundred infected with primary weapons.
Kill one hundred infected with special weapons.
Kill one thousand infected with special weapons.
Play as six different characters.
Play as three different characters.
Play as one character twenty-five times.
Run one hundred meters in a single run.
Run two hundred meters in a single run.
Play as one character one hundred times.
Run three hundred meters in a single run.
Run four hundred meters in a single run.
Run ten thousand meters total.
Run one thousand meters total.
Destroy one hundred objects.
Destroy one thousand objects.
Destroy ten thousand objects.