This is a really cute concept, and I love the art style and the use of tunnels to move between areas in the map. I felt like the difficulty was just right, also, because I was able to beat the game on my second attempt, but it was tricky to get around the human and the cat and I had some close calls.
Unfortunately I found the pathfinding mechanic unusable; if I drew a path from the start zone to the tunnel out to the house, when the house map appeared, a path automatically set to the last point I had clicked in the start room. This forced the beetle into a wall and I couldn't cancel the action, so I kept getting caught. When I stopped trying to use the pathfinding and just used WASD, gameplay was smooth and as expected.
Because of the issue above I had to reload many times, and I also noticed there were some issues with the music. Sometimes when I launched the game it played normally, and other times it had major stutter/quality issues. Refreshing the page and relaunching the game once or twice seemed to fix this.
Overall, ultimately minor issues for an otherwise amazingly executed game. Great work!