Defeat the boss and complete "Museum Madness"
Rescue all hostages in "Museum Madness"
Destroy all nitro crates in "Museum Madness" (Power level)
Destroy all nitro crates and rescue all hostages in "Museum Madness"
Complete "Museum Madness" from the beginning without dying
Defeat the boss without taking damage in "Museum Madness" (Before complete with power level)
Rescue all hostages in "Museum - Secret Level"
Defeat the boss and complete "Dome Sweet Dome"
Rescue all hostages in "Dome Sweet Dome"
Destroy all nitro crates in "Dome Sweet Dome" (Power level)
Destroy all nitro crates and rescue all hostages in "Dome Sweet Dome"
Complete "Dome Sweet Dome" from the beginning without dying
Defeat the boss without taking damage in "Dome Sweet Dome" (Before complete with power level)
Defeat the boss and complete "Bat Caves"
Rescue all hostages in "Bat Caves"
Destroy all nitro crates in "Bat Caves" (Power level)
Destroy all nitro crates and rescue all hostages in "Bat Caves"
Complete "Bat Caves" from the beginning without dying (After complete with power level)
Defeat the boss without taking damage in "Bat Caves" (Before complete with power level)
Defeat the boss and complete "Root Canal"
Rescue all hostages in "Root Canal"
Destroy all nitro crates in "Root Canal" (Power level)
Destroy all nitro crates and rescue all hostages in "Root Canal"
Complete "Root Canal" from the beginning without dying
Defeat the boss without taking damage in "Root Canal" (Before complete with power level)
Rescue all hostages in "Green Park - Secret Level"
Defeat the boss and complete "The Crypt"
Rescue all hostages in "The Crypt"
Destroy all nitro crates in "The Crypt" (Power level)
Destroy all nitro crates and rescue all hostages in "The Crypt"
Complete "The Crypt" from the beginning without dying
Defeat the boss without taking damage in "The Crypt" (Before complete with power level)
Defeat the boss and complete "Haunted Mansion"
Rescue all hostages in "Haunted Mansion"
Destroy all nitro crates in "Haunted Mansion" (Power level)
Destroy all nitro crates and rescue all hostages in "Haunted Mansion"
Complete "Haunted Mansion" from the beginning without dying
Defeat the boss without taking damage in "Haunted Mansion" (Before complete with power level)
Rescue all hostages in "Cemetery - Secret Level"
Defeat the boss and complete "Toxic Factory"
Rescue all hostages in "Toxic Factory"
Destroy all nitro crates in "Toxic Factory" (Power level)
Destroy all nitro crates and rescue all hostages in "Toxic Factory"
Complete "Toxic Factory" from the beginning without dying
Defeat the boss without taking damage in "Toxic Factory" (Before complete with power level)
Defeat the boss and complete "Sludge Slides"
Rescue all hostages in "Sludge Slides"
Destroy all nitro crates in "Sludge Slides" (Power level)
Destroy all nitro crates and rescue all hostages in "Sludge Slides"
Complete "Sludge Slides" from the beginning without dying
Defeat the boss without taking damage in "Sludge Slides" (Before complete with power level)
Rescue all hostages in "Chemical Wasteland - Secret Level"
Defeat the boss and complete "Amazing Boxes"
Destroy all nitro crates and rescue all hostages in "Amazing Boxes"
Complete "Amazing Boxes" from the beginning without dying
Defeat the boss without taking damage in "Amazing Boxes" (Before complete with power level)
Rescue all hostages in "Amazing Boxes"
Destroy all nitro crates in "Amazing Boxes" (Power level)
Defeat the boss and complete "Monkey's Trail"
Rescue all hostages in "Monkey's Trail"
Destroy all nitro crates in "Monkey's Trail" (Power level)
Destroy all nitro crates and rescue all hostages in "Monkey's Trail"
Complete "Monkey's Trail" from the beginning without dying
Defeat the boss without dying in "Monkey's Trail" (Before complete with power level)
Defeat the boss and complete "Through the Trees"
Rescue all hostages in "Through the Trees"
Complete "Through the Trees" from the beginning without dying
Rescue all hostages in "Sewer Port - Secret Level"
Defeat Dr. Knarf and see the normal ending
Defeat Dr. Knarf and see the true ending (100% Game)
With a new game, beat the game and don't die more than three times (one session, no load game)
Collect KNARF backwards in any level
Get 99 lives in any stage