Effectiveness

Effectiveness refers to the bonus (or penalty) when using a Trap against Mice of different Power Types. It is believed to be a modifier applied on the Power or Luck values of a Trap, or possibly both.

Players should avoid hunting at a location where their current traps will be less effective against most of the mice there, such as the Mousoleum without a Shadow/Arcane trap, or the Furoma region without a Tactical trap.

Effectiveness Levels

A Trap can have 1 of 3 possible effectiveness levels against a mouse:

Very Effective

A very effective message implies that there was a bonus to the trap power/luck in catching the mouse. No message is shown if the catch result was a miss.

Normal Effectiveness

No additional message is shown for a normal catch. This implies that no modifier has been applied to the current trap power/luck in catching the mouse, and is the most commonly encountered effectiveness level. No message is shown if the catch result was a miss.

Less Effective

A less effective message will appear when there is a penalty to the trap power/luck in attracting a mouse and the catch result was a miss. This usually indicates that the wrong trap type is being used for the current location. No message is shown if it was a successful catch.

• Note that trap effectiveness has no bearing on the Attraction Rate of a trap and the type of mice attracted, which is dependent on the baited cheese.

Effectiveness Chart

This following chart lists the effectiveness of the 4 existing Trap Power Types against the different breeds of mice. There are some exceptions to the chart, and these have been noted under the exceptions section.

Mouse	Mouse Power Type	Physical Trap	Shadow Trap	Tactical Trap	Arcane Trap
Abm. Snow	Physical	Normal	Normal	Normal	Normal
Acolyte	Arcane	Less Effective	Less Effective	Less Effective	Less Effective
Archer	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Assassin	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Bat	Physical	Normal	Normal	Normal	Normal
Bear	Physical	Normal	Normal	Normal	Normal
Bionic	Physical	Normal	Normal	Normal	Normal
Black Widow	Physical	Normal	Normal	Normal	Normal
Brown	Physical	Normal	Normal	Normal	Normal
Burglar	Physical	Normal	Normal	Normal	Normal
Centaur	Tactical	Unknown	Less Effective	Very Effective	Less Effective
Chameleon	Physical	Normal	Normal	Normal	Normal
Cyclops	Physical	Normal	Normal	Normal	Normal
Diamond	Physical	Normal	Normal	Normal	Normal
Dwarf	Tactical	Normal	Less Effective	Very Effective	Less Effective
Eagle Owl	Tactical	Normal	Less Effective	Very Effective	Less Effective
Elf	Physical	Normal	Normal	Normal	Normal
Elven Princess	Physical	Normal	Normal	Normal	Normal
Fairy	Tactical	Unknown	Less Effective	Very Effective	Less Effective
Foxy	Tactical	Normal	Less Effective	Very Effective	Less Effective
Frog	Physical	Normal	Normal	Normal	Normal
Gargoyle	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Gate Guardian	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Ghost	Shadow	Less Effective	Very Effective	Less Effective	Normal
Gold	Physical	Normal	Normal	Normal	Normal
Golem	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Gorgon	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Granite	Physical	Normal	Normal	Normal	Normal
Grey	Physical	Normal	Normal	Normal	Normal
Hapless	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Hollowhead	Physical	Normal	Normal	Normal	Normal
Keeper	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Kung Fu	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Leprechaun	Physical	Normal	Normal	Normal	Normal
Lich	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Lycan	Shadow	Less Effective	Very Effective	Less Effective	Normal
Master - Belt	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Master - Claw	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Master - Dojo	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Master - Fang	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Mobster	Physical	Normal	Normal	Normal	Normal
Mole	Physical	Normal	Normal	Normal	Normal
Monk	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Monster	Physical	Normal	Normal	Normal	Normal
Moosker	Physical	Normal	Normal	Normal	Normal
Mummy	Shadow	Less Effective	Very Effective	Less Effective	Normal
Mutated Grey	Physical	Normal	Normal	Normal	Normal
Mutated White	Physical	Normal	Normal	Normal	Normal
Nibbler	Physical	Normal	Normal	Normal	Normal
Ninja	Tactical	Normal	Less Effective	Very Effective	Less Effective
Nomad	Tactical	Unknown	Less Effective	Very Effective	Less Effective
Ooze	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Pirate	Tactical	Normal	Less Effective	Very Effective	Less Effective
Rvns. Zombie	Shadow	Less Effective	Very Effective	Less Effective	Normal
Reaper	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Samurai	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Scavenger	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Shaman	Physical	Normal	Normal	Normal	Normal
Spectre	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Spider	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Steel	Physical	Normal	Normal	Normal	Normal
Student - Belt	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Student - Claw	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Student - Fang	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Sylvan	Physical	Normal	Normal	Normal	Normal
Tiger	Tactical	Unknown	Less Effective	Very Effective	Less Effective
Treant	Physical	Normal	Normal	Normal	Normal
Vampire	Shadow	Less Effective	Very Effective	Less Effective	Normal
White	Physical	Normal	Normal	Normal	Normal
Wicked Witch	Physical	Normal	Normal	Normal	Normal
Wiggler	Physical	Normal	Normal	Normal	Normal
Wight	Forgotten	Less Effective	Normal	Less Effective	Very Effective
Worker	Tactical	Less Effective	Less Effective	Very Effective	Less Effective
Zombie	Physical	Normal	Normal	Normal	Normal
Mouse	Power Type	Physical	Shadow	Tactical	Arcane

• iTunes Mouse, Master Burglar Mouse are not included.

Exceptions

• Ninja mice have been noted to be resistant to Physical Traps in the Dojo.
• Physical traps have been noted to be of normal effectiveness against most Tactical mice in the Training Grounds, except against the Assassin Mouse.
• Physical traps are of normal effectiveness against Tactical mice in the Calm Clearing.

History of Changes

• When Arcane traps were first released, it was tested and found to be of Normal Effectiveness against the Master of the Dojo, a Tactical type mouse. However, shortly before the release of the ACRONYM, it was found to have changed to be Less Effective.

See Also

• Cheat Sheet – Condensed Effectiveness Chart
• Hunting Sequence – Official information on how a mouse catch is calculated
• Power Type – List of the different power types available
• Forum Discussion by Adrian Hew, which provided the chart information.
• Catch Rate Estimates by Pooflinger's Tools.
• Trap Effeciveness by MouseHunt Analytics