I'll start by saying I really like the sprite for the main character. The animations were also cool like using the plunger for climbing. I also really like the idea of the game and the mechanics themselves are really interesting and unique. The music was nice too.
That said, I spent about 40 minutes before I decided that I had to take a break. The controls for the pipe jumps felt a little too frame perfect. It was fine when jumping to a safe platform but jumping to a water pipe or chaining pipe jumps together was just too difficult for me personally.
Having to stay perfectly still to use the water pipes was really frustrating as I had to pause for a second and then a split second later time a pipe jump. Often times the water took me too far or not far enough to even reach the jump having me repeat the same jump or often times get thrown back down to repeat a previous jump.
After returning from my break I came back refreshed and actually got a better hang of the pipe jumps. That said it still felt I needed to be near frame perfect and the water jumps were still a big luck based hurdle but I was able to finish the rest in about 10 minutes.
Despite the issues I really do hope the game get's further polished after the jam as despite the problems I really enjoyed the challenge and would love to play more!