I was thinking this for a long time. Pets should be bigger in my opinion. They are a huge part of the game, but to me they just look really small for how much they effect the game. I'm not saying they need to be huge but maybe at ultra they are close to the characters height. Something like 20% increase in size with every rank. Let me know your opinions on it. It's something small but i feel everyone would enjoy it. I really want this game to grow and plan on throwing a lot of ideas out.
Personally I disagree with this suggestion. If they kept growing then they would lose their charm as little companions that go with you. Making them big removes some of the cuteness to their tiny size.