As everyone said, really good concept with switching to characters. I would suggest having a visual help would be nice to know which key represents which character. I know it's not difficult to remember with 2 characters but a visual feedback will give a more polished feeling. Somehow I couldn't figure out what to do so I had to quit in the first level. Please leave some help here so that I can play it thoroughly before rating. 

Cool game! I like the aesthetic and the overall idea. The game getting stuck when the big character dies is unfortunate tho :( 

Liked the concept and the mechanic of character switching and using them to solve puzzles.

loved the concept and the music was nice

I really like the concept of having two characters work together to progress, nice job! The characters felt a little slippery to control but otherwise it was fun!

Cool game! Controls are a little floaty, and landing on the head of the big guy is kind of hard, feels like you slide off real easy.

Also I broke the game and had to restart when I died as the big guy. But still cool stuff.