The recommended Scoobie is a Holy with two Javelin Laser Beams. Note: These are not the shoulder ones, They are the arm ones that can be obtained from the "special Mechs" that appear on the days that are a multiple of six from Ventuno. Also equip a Heavy Heavy (try to max it out), Hover Legs, and 30 mm armor. Also, a Light Light body (about 35 light) and a Heavy Heavy (maxed out for damage)Slingshot in case the Boss turns invisible. Wait until you have a clear shot at the Boss. Use one arm until it is depleted then switch to the other arm. This should take them out. If not, wait until they recharge then do it again.