This enemy, despite it's cutesy appearance, is viciously powerful, with a rapid attack rate, long range and 50% chance to freeze cat units for 5 seconds. That leaves enough time for Li'l Dark Cat to land nearly 10 more attacks once they get frozen, making it pretty much perma-freeze.
Unfortunately for it though, it's damage is a bit low, so a high leveled Ramen Cat can sufficiently stall it.