Sneak the cat from the top-left corner to its house in the bottom-right. The yard is full of dogs. Bump into one and it barks. Watch out for hidden lightning bolts in the grass: step on one and you get zapped back to the start. And keep moving: a dinosaur wakes up on your first step and hunts you down, one square per second. Press H to hide in a box for 5 seconds.
Move with ↑ ↓ ← → or WASD. On a phone, swipe the yard or use the pad. With hidden dogs on, you only find them by bumping into them. Lightning bolts are always hidden until you step on one. The dinosaur walks over bolts but can't get past dogs. Press H to hide: you can't move for 5 seconds, the dinosaur loses track of you, and hiding is ready again 5 seconds after you come out.