Really enjoyed this one. Making snake a more deep strategic game with units is really interesting, and if things are getting dull the splitting makes sure that doesn't last.
Biggest issue is probably that it seems impossible to lose. Not getting hit when you've only one part is too easy. Just adding a timer to beat the stage may have helped.
Also the 3 unit types seem to basically act the same as far as I can tell.
Really nice art style. Some more detail to help convey purpose, particularly on enemies, would help, but it's still nice to look at thanks to the childish artstyle.
Overall, liked it.