This is a good game and a great start if this is your first game jam attempt.
I think it would have benefitted from a game over/high score screen to break up the gameplay loop (I played a few times without realising I had lost and restarted) but it was still fun to play.
Sounds like you had plans for VFX and more gameplay systems but you managed to submit a working game on time (with instructions which are super useful) so congrats!