The Mechanical Noggin Bonus Card is a free reward for completing the twelfth quest in the Monster Crew storyline, “Magnetic Personality”.  This is probably my favorite Bonus Card, one that really helped me start to put long runs together.

Mechanical Noggin gives you the power to attract Loot from further away, just like the Magnet Buffs that you can pick up.  It makes picking up Loot incredibly easy, and it all adds up.  All those Coins that were just out of reach, all those Health Coins you desperately needed, that Invincible Buff you missed will all be yours! And every little bit helps.