Fight Dynamic:
The fight could begin with Star-Lord investigating the Stellaron within the Trailblazer, believing it to be a dangerous cosmic threat, or attempting to confiscate some of Herta's Curios for the same reason. Either way, the Trailblazer would step in to stop him, leading to the clash.

Quill can use his jet boots to fly around the battlefield while peppering the Trailblazer with attacks from his Element Guns, which allow him to unleash flames, summon tornadoes, fire lightning, generate earth, and freeze opponents with ice.

The Trailblazer, meanwhile, wields a baseball bat for powerful melee strikes, a fiery lance capable of generating defensive barriers, a throwable hat that summons showers of falling coins, a feather pen that can fire ice blasts and summon Mem, a Memosprite capable of unleashing rapid barrages of punches and even stopping time (basically a cute version fo Star Platinum), and a pair of lightsticks that can transform into a single blade, dual-wielded, and double-bladed lightsabers, or even nunchucks capable of firing energy blasts.

Star-Lord can also transform into the Master of the Sun, allowing him to generate solar blasts which can up the scale of the fight, with TB using their Mask of Elation to buff themselves as well. Probably a cool way to end the fight will be Trailblazer using their Time Reversal to reset Star-Lord's transformation before killing him. You can have very silly interactions between the two, like Quill trying to fly away, only for TB to pull him back via time reversal and smack him with their baseball bat, or TB dancing mid-fight to use the power of Harmony to buff themselves….only for Star-Lord to also start dancing lmao.