This thing is so much fun! Is like a blend of Sonic 2, Rocketknight Adventures 2 and Ristar. All SEGA Genesis games that I love.
Amazing writing and voice acting (better than a lot of AAA games), great level design, nice music and some spectacular boss fights. Also the characters feel so alive, and has on-point humor. And the sixth level has its own GLaDOS!
Maybe I´m hyping a little too much, but I liked this game much more than I expected.