I think more people should rate and play it, this is a really cool game. I liked the tower defense mechanics and how simple it was to understand. Like the melee aspect with your character and having to be careful not to die by getting hit by the enemies.
To improve it, the "Respawn?" button is greyed out, but it doesn't seem prominent enough to me and I almost didn't notice it and thought it was a bug. Perhaps it should have something added to make it more obvious it is greyed out for the moment, such as a lower opacity. In addition to this, maybe there should be a small countdown such as "Respawn in (5)" or however long it is until it goes all the way down and it shows it updating the amount of time left. Then the button UI changes and the "Respawn" button as you have it now in white text shows up and can be selected then to respawn.
Other than that I really liked the visual style and graphics, and the mechanic worked really well and was fun, nice job on this!