This Snake-variant is more action-oriented than the original, with moving obstacles and speed modifiers sprawled across the levels. I've tried to make all 20 levels as unique as possible, too. I realize Snake games aren't quite original, so I've done my best to make this different - and more challenging - than the rest. Especially the later levels can be quite difficult. If the speed is too fast or slow, you can change it in the options menu.
You can use both the arrow and the 'wasd' keys to control your nibbler. You can pause and continue the game with 'p' or 'space'. You can quit to the main menu with 'escape'. To continue after beating a level, press 'enter'. To toggle the sound, press 'm'.
UPDATE: Uploaded the correct version: you now start in level 1. :)
EDIT: You can't move backwards, as in the original Snake.