GO!GO! PRINCESS!
Nope. You cannot get an ending with cute lil' Cube! Only the Prince, which greatly bites.  You also cannot get an ending with ANY other prince at all, just the Prince of the Kingdom.  Cube only rolls the die when you select him to in the options, and that's all he does.
But, there could be a secert way to get an ending with him, maybe only with Olive?...
 
 

BACK