The fact that you have to stand in fountains for a long time is pretty much impossible to figure out without the unfortunately hidden sign and I think said signs should last longer on the screen so you don't have to try and completely stop on them in order to read them.
Otherwise, the game looks nice, the concept is fun although slightly frustrating at times, it reminds me of Sonic's gimmick to try and go fast in levels that require precision jumping. I had fun trying to complete the game, nice work!