This is a great first game. I like your choice of soundtrack paired with my little guy screaming in crackled pain over the radio. I got to level 3 and it was very challenging.
The controls felt great, movement speedy and responsive, not slidey - and a variable jump height (which is needed for later levels).
The ledge grab also worked fairly well, until level 3 when you need to do a bunch of ledge grab/jumps in a row - I gave up :D
I’d recommend not starting the fire rise until the player first starts moving - that was the only thing that annoyed me.
Awesome first game.