Tip Top Pet Shop TD

Towers:
Cat - Medium Range, Medium Speed
Dog - High Range, Low Speed
Turtle - Slow Enemies
Fish - Wide Attack
Rabbit - Explosive Area of Effect

Hit the ESC key to instantly close the game

There's no pause, so make sure to slap down a tower right away.

Upgrades unlock at wave 11, and wave 21 starts a new map. The new map is fully endless, the amount of enemies scale exponentially, I noticed that by wave 10 on the second map the game gets really, really long. The second map does unlock the bunny tower, so test it out as much you'd like, but I would recommending closing it manually once you're bored, there's no goal, it's just endless.