Sparky is the nickname that max gives the second boss, which appears to be the power core for the alien orbiter. The boss taunts Max before Max taunts him back and the battle starts. this boss has a total of 4 phases.
The first phase has Max attacking the large glowing orbs on Sparky. The orbs are capable of dealing damage equal to Bottrock's fire bullets. The blasts home into max and, upon contant, force him to the ground, making it rather pointless of using the jetpack at this point. Once the glowing orbs on Sparky are all destroyed, the second phase begins. Whenever a glowing orb is destroyed, a light beam shoots from Sparky endlessly which can damage Max if he comes in contact with it.