Overall not bad, I got my final fantasy fanfare at the end :)
Some thoughts:
- The timing on damage from the piranha plants was a little off
- Spamming bullet attack was ridiculously strong, perhaps the bullets could despawn after a short time. I was able to quickly clear the maze by just spamming at the start, so some balance is needed here.
- The dash going towards the mouse instead of the movement direction wasn't intuitive, since that wasn't listed on the tutorial controls, but I figured it out.
Great job!