Hello,
At first, I thought that it was very difficult to kill the enemy in the game. Actually, killing him is not too difficult after I played the game for a short period of time. The background music is excellent. If there are sound effects in the game, the atmosphere will be raised to a higher level. The gameplay is simple but it is interesting. If there are other levels with new items, the game will be more attractive.
I was suprised because you used QBJS to create this game. I remember that you liked to use FreeBASIC to create entries in the previous jams. You left your comfort zone for making this game. Good job!