How I defeated hard:
Start with Magic Wand Friend
Before 1st boss, you should have Ice Gun Friend
Before 2nd boss, you should have Laser Gun Friend
Before 3rd boss, you should have Poison Bamboo Friend
After that, take whatever you feel you need. Good picks are Shotgun (good for all purpose), Ninja Stars (good against bosses), more Magic Wand (for creep clearing)
 "Epic Friends"){kind=icon}