(just reposting from the submission page, don't worry about replying again :P)
thanks for playing so long, and thanks for all the feedback!
Yeah, the game is more challenging than I thought it was hahah, I will definitely keep that in mind for the next game I make. You got much further than most people I showed it to, although I (the programmer and dev) got to around 1250 :P. I'm not sure how far the artist made it, but I think you beat him XD
The lava speeds up slowly as you rise and eventually a single mistake can end the game for you, I think if I were making the game again I would make it easier at the beginning and increase in difficulty more slowly. I also definitely had some problems programming the wall-jumping, and the way it works is a bit confusing
The going down a platform was intended for another version of the game where there were going to be more enemies that came in and the lava wouldn't speed up, so the mechanic made sense. You're right that it's not useful here, and descending faster is a great idea! might just do that today or sometime this week :p
Thanks for taking the time to play and write this all out, it means a lot!! <3