GAMEPLAY: The lack of in-game tutorial was a bit of a problem, given how you die in five seconds or so. A tutorial fight against a training dummy would be ideal, but even under a time crunch, putting the 'how to play' text from the homepage into the game itself would be useful. Picking up and throwing was executed well, and the variety of items (each with action-movie-esque flavor text) was a treat. I got rather upset that the boss charged on me and killed me out of nowhere--some sort of wind-up animation is customary, even if he's just tinted red for a bit. Outside of the charging, it's remarkably easy to circle him and toss items at him. Very fun.
VISUALS: Not 'gorgeous' pixel art, but 'fun and lively', which fits the tone. It's still a bit janky in places, but forgiveable. The arcs of tossed-in items is a nice touch.
AUDIO: I got hooked from the title music. The meaty smacks and the voiceover all scream 'arcade fighting game', which is exactly what you were going for. Good work!
THEME: I can excuse not picking up the cars. Practically everything gets used as a weapon, which is exactly what was asked for.