Hard Badge Guide:
Clear every room before completing a level.
Stack +5 Damage from all stat boost rooms
Hold left click when entering rooms to trigger your ability (poison is best)
You can regain health and ability by entering already cleared rooms and killing fiends and ghosts (target ghosts first as they always drop potions)
Don't go into the little black hole in the wall!
I cleared on my first attempt doing this, have fun!
i just realized this game is made by the people who made ratchet and clank and thats why they have all those captin quark quotes in the load screens haha
Santa: "Don't worry I've got my awesome team of scientists working on new paint jobs for all this stuff, THAT'S how you get going really high. Awesome new candy cane paint job."
well here is what worked for me on the last lvl. I used the invincibility as much as possible and ran up to him and made him suicide himself. I also used mines that i planted on him while he was in shield. Pick up rocket launcher as much as possible and with invincibility you can't kill yourself. Still pretty tricky make sure to get 50% hp bonus and 20% speed bonus and 40% longer power up bonus. Also get holy grail and destroyer to maximize dmg.