Took me an embarrassingly long time to discover you could wall jump but once I understood I managed to get to the ending with 113 coins and 2 mice. I'm guessing I missed a lot when when falling through the balconies.
Speed up and charge jump being the same action makes the game really interesting to control. There are a few tough spots (especially between the two dumpsters on the bottom left under all the balconies) but I had fun figuring out the mechanics with trial and error. The crossing road bit was a nice change of pace and still stuck to the one button philosophy.
Autowalk is also a really cool way for the character to move, I liked trying to see what jumps were needed coming the other way and then finding the quickest way to bonk an object to go back when I failed. It seems like it made the level design a lot trickier but you did really well here. Also, nice touch to have the credits in-game on the billboards at the end.