Also, there is a bug about placement of units. When a unit is not in full size, it collides with the adjacent units after the size increases.
I enjoyed the game very much. Thank you :)
The game is actually really good. However it is annoying to not have the option for:
1- Speeding up the game
2- Keeping the unit movement configurations througout the stages
3- Knowing what is required to unlock other upgrade menus like structures, world etc