The game idea is awesome, but there are many problems, such as balancing, bugs, and dynamicy. The game needs more than just arena. Maybe a training area in the wild? Random events? The balancing is bad, such as how you can buy something for 400 but sell it for 100, even if it isn't any good. There are some bugs I've noticed, like sometimes the enemies arms won't go out of function, but you can't attack them anymore, since they're 0 hp. Please fix.
on the maze level when you get to the lower part of the maze path theres a rectangle area covered off and the line that covers it over hangs off the edge of the wall. if u walk straight towards that line, you'll go in it and u get an achievement that says A-Ma-Zing!
the map is an exact replica of that in Grow Island by EyezMaze and the game is plaigarism of the idea of Doodle God, but the concept of you actually get to see what you make is awesome, so i would either suggest you get a publisher to refine your icons and make new element types that make sense how to make, or you're not going to have a solid game.