Too Many Bones: Unbreakable ups the stakes with the addition of the Lava Battle Mat and new Break-type baddies. Made up of 16 chips that slot into the neoprene play surface, the Lava Battle Mat is a dynamic battlefield where the ground beneath your adventurer�??s feet can change at any time, turning from solid ground into molten lava in an instant. This deadly change is controlled by Unbreakable�??s unique encounters and the Break-type baddies, who have a variety of new powers that specifically interact with the lava chips.