It was a good idea but executed a tad poorly.Let me explain
When you're using a mouse , its difficult to drag down in the opposite direction of where the player is moving with how fast the player was falling and the lava was coming up.
The game would work well on a touch screen device with these mechanics but not with a mouse.
Hope this helps.

There wasn't really a clear point to the game besides it being kind of annoying but the music was nice, Though it in my opinion didn't even fit the type of game you made.
Maybe increase the size of the camera so the player can see more of the level or give them a clear goal because the nature of the map and that camera size doesn't allow for much exploration.

Edit: The game is definitely better now ,increased my rating to 4 stars.

cool art