I love the music, colours and animation. The game does get hard (I'm kind of stuck on level 10) and you have to replay a whole stage every time you die, which can get frustrating. But overall this is a fun little package.
There is a Linux version except I can't find any kind of file to run to start it. I couldn't get the Linux version to even launch, as a result; though the Windows version runs fine (so far) in Linux Mint Cinnamon. The only issue is that the screen blanks every ten mins or so - pause, wiggle mouse, unpause and it is fine.