Sparkrobo is a mecha vehicle introduced in Sparkster: Rocket Knight Adventures 2. It is used both on the Prologue and on Stage 4.
Details
The Sparkrobo appears as a giant blue mech with a face in the front resembling Sparkster. When controlling it the player can move forward and back and ajust the angle of the mech's fist, with the joystick's three buttons being used to launch the Sparkrobo's fist, block attacks and uppercut, respectively. During the second part of stage 4 the camera shifts to the Sparkrobo's legs, with the player being able to jump by pressing any button during this section.