Wonderful game and great music. Movement control takes a little bit of getting used to, but ends up being an advantage to speeding through or sequence breaking. Only drawback so far has been the inability to restart or delete a save file. After 3 playthroughs you're stuck loading a save file.
A very nice little platformer/metroidvania style exploration, however, I have encountered a massively gamebreaking bug, when dying in the lower area of the first maps. A death int he lava created a condition where i viewed a room that has a missile tank and refused to let me do anything else.