Very interesting concept. Some of the objects look very samey though, such that I didn't realise some of them were actually mines and I was wondering why I was dying. There's a nasty bug with the level up though, where if you just hold down L then it will infinitely level up until your game lags from the hazards flying at you, and then the level number never decreases (although the speed etc. resets when you die).
The wavey landscape looks cool and the music fits the theme (although maybe a bit repetitive). Cool game!