|Bowser's Inside Story Enemy
Two Treevils (one with a berry and one without).
||52 (with berry)|
46 (without berry)
||45 (with berry)|
36 (without berry)
||24 (with berry)|
18 (without berry)
||35 (with berry)|
30 (without berry)
||10 (with berry)|
8 (without berry)
|| Hot Drumstick (5%)|
Syrup Jar (25%)
Treevil is a walking tree enemy found in Mario & Luigi: Bowser's Inside Story. They can be encountered in Dimble Wood. It appears in two forms, one with sad glowing blue eyes and one with malicious red eyes, the latter holding an acorn on its branches; these Treevils are stronger. To attack, a Treevil throws twigs at the character. While playing as Bowser, Treevil will either lob the twig high into the air, forcing Bowser to use his shell defense, or throw it so it bounces along the ground, forcing Bowser to counter it with a punch. If a Treevil has an acorn, Bowser can inhale it using his Vacuum attack to restore 20 HP. When Mario and Luigi encounter a Treevil, it attacks in the same way, but the Bros. must counter the twigs with their hammers.
- "Treevil" is a portmanteau of the words "tree" and "evil."
- They bear a resemblance to the trees with eyes seen in Forever Forest in Paper Mario.
 Names in Other Languages
|From 「禍」 maga, meaning evil, and the English word tree.
||From árbol (tree) and diabólico (diabolic).
||From malo/a (bad or evil) and rama (branch).
||From Arbre (tree) and diabolique (diabolic).
||From Epouvante, meaning terror and Arbre, meaning tree.
||From Alptraum, meaning nightmare and Baum, meaning tree.