The game is fun and really good for not having an engine to make it. The idea is cool since you change from player to zombie but the controls can be a bit frustrating since you can only press one key at the same time and doesnt change directions if you press two. I mean you missed the diagonals and I can move in just one direction at time so 4 directions. Normally top down movement should have 8 directions or more. But the game is fun (And hard to be the zombie). Good job.