Nice little game you got there :)
The execution is clean, but I had one issue: the light emitted by the robot is too small, and I found myself repeatedly dying because of enemies I could react to quickly enough. I ended up having to memorize the enemy layout. I also died a lot because I had to make a choice between scouting ahead and viewing my character (and platforming without seeing your character is hard ^^). It was a bit frustrating, mostly in the last level, when you have to face groups of 3-4 enemies regularly.
That aside, the art and sound is clean (maybe add a sound for when you've fallen in a hole?), and the game is fun! Well done :D