Get the disk shooter from Mr. Potato Head. Shoot the Boss, but do not allow him get too close to you, or he will shoot out hot bolts Note: You must find Mr. Potato Head's eye to unlock and receive the disk shooter. You only receive ten disks that may be used over and over if you return.

The green laser does not work on the Jackhammer Boss (Construction Site). You do have to use the disk launcher. You can get it by finding Mr. Potato Head's ear, which is located on the steel girders in the middle of the site.