Big Dice uses the same ice block shooting attack as a regular Dice, but this time, the blocks are bigger than usual, thus, they take up more space and are more dangerous. Along with Dice, they only appear in Stage 8 of Dedede Resort.
Within the background of Stage 1 of Sandy Canyon, one can see a skull that greatly resembles a Big Dice's head. It is unknown why this is located here, as Big Dices are only found in Dedede Resort.
It is possible that Big Dices were meant to appear in this stage, as orange sprites of both Dices and Big Dices can be found buried in the game's memory.