Bonus power box

This is a large crate with a question mark on each side which appears only during the Rollerbeetle Racing. When the race starts you have 3 of 8 Rollerbeetle Racing skills charged. These skills are:

Rollerbeetle Dash

Harden Shell

Ram

When touching one of these boxes it will randomly charge one of the remaining 5 skills. These skills are:

Super Rollerbeetle

Rollerbeetle Echo

Distracting Lunge

Rollerbeetle Blast

Spit Rocks