Hey, pretty neat game! Feels like a legit bootleg NES game that you'd see from some company like Color Dreams or Wisdom Tree. For the most part the game feels pretty well-constructed and delivers some decent sokoban-style puzzles. I was impressed at how some levels intuitively taught certain rules from their layouts, like how sponges work in that they can stop you from sliding (but be careful of the fact that you still push it a tile in doing so).
Now, as much as I liked it, you'll notice that I compared it to bootleg games instead of proper games you'd get from Konami or something (boy, times have changed huh). And that's because it is a bit lacking in some regards:
For one, it is quite a drab game due to a lack of juice. I was disappointed that certain actions like using a sponge on a oil spill just had the sprites immediately disappear: would've much preferred if it produced a satisfying soap bubble explosion sprite and a pop/wiping sound effect. Similarly, it'd be cool if when you finish the objectives of a level, the bucket sparkles or glows in a pleasant way, similar to when you collect everything in a game like Solomon's Key. Little things like that would help to liven up the game considerably.
Another aspect that bothered me slightly was the pace and difficulty curve of the game: it just didn't feel like it was delivering a solid and addictive engagement due to the difficulty suddenly dipping back down at times, lots of puzzles having too much wiggle room, and the game not introducing enough new mechanics or twists. I imagine it eventually gets better, but I found myself getting a bit tired around level 10 or so due to the slow pace.
It's still a nice game, but if I were to be brutally honest, I'd say it is merely nice, instead of being something great or memorable. Not a crime or anything, but it did make me wish for more!