Whoa, thanks a bunch for the detailed feedback, I really appreciate it. And I'm glad you liked the game :D
Yeah, I didn't have enough time to create the UI, I'll keep that in mind when I continue the development~
As for the unit limitations, I actually set it up so that you are able to field six units on the field, so I guess that was a bug. I'll try looking into that. Thanks for finding it :D