Im sure its been said before, many times, but make some sort of mini game out of having cubimals (other than the racing) give the option to go into a 'battle mode' give each cubimal 4 different attacks and a health bar, and battle them turn by turn.... each cubimal could have their own stat page for wins and losses and wins could gain them their very own iMG so they can level up
or make a Single Player mini game where they fight rooks for iMG
Cubè-mon