Great game. Has some fun challenges, along with a retro type of charm.
Although it admittedly doesn't have quite the same charm as Enough Plumbers, Enough Plumbers 2 is still very much a good game. There's actually some neat little references to the original thrown in there too.
This really reminds me of Battleblock Theatre because of the puppet-show style setup and background, as well as the toilet-themed level transitions. However, it is an amazing piece of work is is fun to play, no matter what your skill level is.
Looks like Mario, but is something original, in fact, I like it :)