This is really neat! I like the idea and potential for varied strategy and interactions of units and what they're doing at the moment. The game starts off good with the first few levels introducing new units, but the lack of variety after those first few levels becomes apparent and is my only real complaint. Either the field could have been changed up or perhaps some other units or actions for the units already introduced would help to really flesh out this idea. I quite liked it! It crashed a couple times. You'd think perhaps because of the dropped frames level, and it did crash there once, but also on the second level, so I don't think it's necessarily a resource issue.
Very cool!