Trio Drill

The Trio Drill is the fourth Trio Move learned in Mario & Luigi: Paper Jam. It is similar in function and appearance to Drill Bros. with some small differences. Mario and Luigi start spinning, with Paper Mario folding into a cone and joining them to dig underground. The Mario Bros. can then move underground to pass under impossibly high-to-reach walls. By holding, the player can Drill Dash to break rocks underground and start moving over soft dirt walls. If there is an opening, this can also be done to exit walls or cross a gap to another wall. Like with Trio Grab, and  cancel the Trio Move.

Like with Drill Bros., the player can receive Beans of various kinds, 50 Gold Coins, and 100 Gold Coins by passing through patches labeled with an "X". Additionally, paper terrain with a ? Block pattern over it can be dug into to receive either items or gear. However, digging underneath enemies still starts up a battle against them.