I think they should add a garden where you can plant and harvest crops and you should be able to use the vegetables and fruits you harvest to make pet food
To the Makers of Sprial Knights: I think you should add Battle sprite eggs as a rare drop because If you do that you can try to collect all the battle sprites and you should also be able to fuse Battle sprites together to make stronger ones.
A add on to Charliemo's Comment: It would be nice if you could set the lvl skill to train up to so you dont over train that one skill as all the others are super low