Here is the full list of all 32 Final Exam achievements.
Complete 4 missions in the game.
Kill 500 monsters.
Heal a character on the ground 10 times in multiplayer mode.
Exterminate 10 hordes.
Find 12 cans.
Complete a mission in the game.
Complete an online multiplayer game.
Exterminate 3 hordes.
Find a new weapon.
Finish all the missions in the game.
Complete a mission in 2 player local game mode.
Win the golden glove on one mission.
Win the golden glove on 4 missions.
Get the gold in every mission.
Complete a mission without taking a single hit.
Complete all the missions in the game in "Rock hard" mode.
Find all weapons with the same character.
Launch the 4 special skills specific to one character in a single mission.
Exterminate 50 hordes.
Achieve a 10,000 point combo.
Achieve a 25,000 point combo.
Achieve a 50,000 point combo.
Achieve a 100,000 point combo.
Score 200,000 points in a single game.
Score 300,000 points in a single game.
Score 400,000 points in a single game.
Kill 1,000 monsters.
Kill 2,500 monsters.
Kill 250 monsters with the chainsaw.
Kill 500 monsters with the chainsaw.
Kill 150 monsters with fire.
Kill 300 monsters with fire.