The demo started off with a brief cutscene with the dog lunging and falling short of a rabbit, only to be laughed at afterwards. Graphically, all the animals lean towards realism and this was the one exception other than a dog jumping eight feet high on a whim. The game doesn't scream big budget with its 2D gameplay and good enough but nothing spectacular graphics. Human-free Tokyo streets are overrun with plants and garbage with dilapidated buildings in the background. The dog had fur but other animals had only a texture. 

Regardless, back to the game which was easy to pickup and play. Finding and eating animals is the essence of the game with a looming health/stamina meter constantly down in the top left corner. Sniffing with R2 will make animals appear on the radar-like map in the bottom left corner with rabbits and chickens being the first set of victims. Each rabbit was looking away, making a stealth kill possible. Sneaking was done by holding R1 while moving. Once the prey was in range, a red reticule would circle him leading the way for a lunge attack by tapping L2 plus triangle. The multiple buttons for an attack seemed necessary but I was used to it by the end of the demo.

Each kill was made important with a slow motion finish. Despite the cute appearance of the main character, it was on the verge of gruesome with blood spraying out and necks snapping. After the kill, eating the enemy would increase health/stamina and experience points. However, eating is not done automatically as there was promise for deeper gameplay in a situation with a rabbit and crows circling around. Sure, killing the rabbit and eating him was an easy solution but the crows would still be airborne.  Killing the rabbit but leaving him on the ground enticed the peckish crows to come down for a snack, leaving them vulnerable. 

Some simple platforming was in the game via jumping up and down different floors on the sides of buildings. The platforming kept the game fresher than only walking along a street forever, something more akin to TMNT II on the NES. At the end of the demo, there were some cats that offered resistance unlike the docile rabbits. Sneaking doesn't work when the prey has seen you but attacking with L1 plus circle does. After a few attacks, there's eventually a turning point where you can chow down on the jugular with a triangle button mash. The larger cat boss managed to take off about 35% of my health/stamina meter before packing it in. The demo ends on a more light hearted moment with the pomeranian rolling around on the cat's turf to spread his scent with text narration mentioning something along the lines of, "You are no longer a pet but a hunter!" 

Overall, I'd say it's worth to give this game a shot if A) you'd like to play something different, B) it ever comes out to North America and C) the pricing is for a budget title. There currently is no Japanese release date.