I felt boring, 7 minutes (in fact more, cause timer stops sometimes) it's too much. I didn't played for the end( Maybe decrease time to minute would solve this problem. Maybe between this 7 minutes something interesting happens, but i have huge barrier in mind, so i dropped game( Good bite with a bomb behind screen :D
Anyways, simple and good artstyle. Not bad music. Idea is interesting.
Finally to avoid such barriers from appearing in players minds, test the game on yourself and others, take feedbacks and improve your games!
Anyways good job!