Collect all creature entries.
Kill all rats in game.
Finish level without reloading with bullets in the chamber.
Fire off 666 heads!
Knock back the Kenfis
Don't destroy any glass panels on level 2.
Lose all credits and die.
Nail down opponent's head with Pitter
Kill 5 enemies at the same time.
Finish single chapter without taking any damage.
Discover all three endings.
Finish the game with the final score below 62,000 and the last score digit not equal to zero
Collect all additional weapons available in the game.
Devastate opponent's body as much as possible!
Collect your first additional weapon.
Finish the game with the final score below 62,000 and the last score digit equal to zero
Save all Scientists through the campaign.
Finish full campaign with your friend!
Enter secret room on level 4.
Shoot down enemies projectiles 50 times.
Kill 666 enemies.
Finish any chapter with help of Player 2.
Let Player 2 join the game while in a middle of a campaign.
Kill all Scientists at any chapter.
Beat campaign at ARCADE difficulty.
Beat campaign at any difficulty.
Complete the game with a total score of over 62,000
Beat Magician at the end of fourth chapter.
Beat Hermit at the end of third chapter.
Beat Hangedman at the end of second chapter.
Shoot all Hangedman's Devilions.
Beat Chariot at the end of first chapter.
Kill 5 enemies in a row.
Kill 3 enemies in a row.
Save a Scientist.
Kill a Scientist
Unlock all achievements of The House Of The Dead!
Discover all paths available in the game.
Collect all items in a single campaign.
Finish whole campaign without taking any damage.
Knock up an enemy as high as possible.