Hey.
Quite a polished game and I felt like you were able to make good use of rather simple graphics. Well done.
Maybe you could consider using online free music next time? It's usually better than having no music whatsoever.
As other people have mentioned, you could have split the second level into two smaller levels or added a checkpoint mid-way the second level.
I wish you had explored more the mechanics you introduced.
It felt a bit weird not dying when there was a block right in the lava tiles and I walked on that block. Maybe you could have considered not letting the player spawn blocks on lava tiles?
