Love that you put the controls in-game and that they're relatively simple. I suggest that instead of having the controls listed on the page, you just say "controls are taught in-game" just to get players in game as quickly as possible, rather that feel like they need to memorize controls before starting.
My first play I did decently and hit a mine after a few moments.
Second play I survived for a couple minutes and I think I did amazingly well.
The next 10+ games I died by the monster immediately. No exaggeration, I could't survive more than 5 seconds. It spawned right on top of me every time and I had no way to escape.
The vector-looking graphics are really nice. A lot of jammers forget how simple and effective graphics can make a game more functional and easy to read.