Nice little game! I really dig the 1-bit aesthetic! However it is sometimes difficult to make the difference between the actual terrain/obstacles and the scenery. It does look a bit cluttered at times.
Controls are simple but easy to grasp, though I didn't realize you can perform a double jump at first. That opened a new path for me in the second level.
It seems some messages were skipped at times (or not enough time to read them).
Music and sound FX are very fitting for this kind of retro game.