It's a creative one  a curious bullet hell, but it need another objective, lik collect obs or something, because the timer don't work along the tile trap mechanic, the easiest way to get a high time it's simply don't move and don't play.
the main problem it's that the windows is too small and can't be maximized.

The game aside you should try to export it in html, and configure it to play in the broser for the game jam at least, that way more people gonna try it

I really like how the tomb floor looks! Some easy improvements to make the game better are having a fullscreen option and a death sound effect.