I  like the roguelike concept but the player often spawns inside a wall and can't move. Other than that the gameplay is fun though quite difficult with the fast speed of the robot. Generally it could be refined in terms of art (which seems a bit bare bones) and gameplay (could benefit from balancing). I was impressed by the custom music and the UI animations, and considering which upgrade to pick does add a lot to the gameplay. Finally, I don't see how the theme is incorporated.

Since you varied the speed of the music, the fact that it was repetitive was less irritating and almost steadying. Cool bit of adaptive coding. The art also fits the game well. I will assume that the various upgrades provide the concoction element to the game? For my feeling, the enemies are a bit op and the upgrades underwhelming, but the interplay between movement options and the various upgrades and trying to figure that out does provide a satisfying game experience in the end. The fast pace and quick reload mean it’s fun to keep playing and motivating to get better. Nice!