Sorry to say that, but this game is literally a bad version of tamagochi paired with a bad version of snake. I don't really get the point of this game. Maybe try adding some interesting features, for instance an actual objective to game. Another idea would be to maybe finding the robot to be broken and then having to repair it. Possibly dropping the necessary parts for repair by minigames.
You could also try to implement sort of an overworld that has quests for you so you can upgrade your robot.
Try adding an objective, like a robot fight tournament, where you have to present your robot and fight other robots. In its current state, the game becomes stale after playing it fo 1 minute. Sorry for the bad review, maybe you take this productive criticism to heart and make a decent game out of this.