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

• 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