Nice entry! Using WASD/arrows on a diagonal perspective felt a little awkward to control, but once I got used to it, the controls felt great and responsive. Definitely a high priority for a game like this.
I only got a high score of 2. I think speeding up the game a bit might help replayability. Starting over felt a tad tedious just because it takes so long to navigate. Making everything a bit faster and adding pickups (or just coins) in more places would make the moment to moment gameplay feel more engaging, too.
Overall, cool lil game and I enjoyed my time with it. Congrats on making this in just a few days! Keep it up! :)