Heal a character on the ground 10 times in multiplayer mode.
Kill 300 monsters with fire.
Kill 500 monsters with the chainsaw.
Launch the 4 special skills specific to one character in a single mission.
Achieve a 10,000 point combo.
Get the gold in every mission.
Find all weapons with the same character.
Complete all the missions in the game in "Rock hard" mode.
Score 300,000 points in a single game.
Kill 1,000 monsters.
Achieve a 50,000 point combo.
Exterminate 3 hordes.
Complete a mission in 2 player local game mode.
Complete an online multiplayer game.
Win the golden glove on one mission.
Finish all the missions in the game.
