Really love the art and the songs are very fun and happy. Creative lyrics and great voices :) Thanks for giving an option to download the OST!
Clearly a lot of care has been put into the game, from the cool menus (you even have sliders, a story and difficulty levels!), to the well thought-out effects and art style. Placing obstacles in the level is a really cool way to keep you on your toes (do snakes even have toes, though? :P). But even if you lose it's not a big deal, because you can listen to the songs again! And of course, the game is fun!
The nightmare level was unexpected and awesome! The light and dark mechanic really adds a lot to the gameplay and all the subtle effects (like screen flashing red when collecting an item) are really well implemented. Not knowing what is around the corner really sell the idea of a nightmare.
Great job!