You can´t lower the rate cuz it don't have badges cuz it's not the developer that puts badges in his game and it will probably be the next challenge, and the lower the rate less chances to have badges
How to get special monsters Hobbits: Read instructions and view credits Dwarf: Play the game 3 times Bombermans: lose 3 times Angel:Get all races maxed out in upgrades Red dragon: Kill "The End" boss Devil: Kill the very last boss. Keep This Alive
How to get special monsters Hobbits: Read instructions and view credits Dwarf: Play the game 3 times Bombermans: lose 3 times Angel:Get all races maxed out in upgrades Red dragon: Kill "The End" boss Devil: Kill the very last boss Keep This Alive