between this and the blimp fruit, the galaxy series were probably where many kids found their start (myself included iirc)
also they sweat and huff/puff, they may like this more than they let on >_>

If Lumas turn into planets at the end of their lifespan…Ah well, better not to think about it. The point is, these guys are bottomless pits, and only after you fatten them up with your well-earned Star Bits can you progress on to uncharted worlds!