Super creative use of MZ, nicely done! Good writing too, some funny cheesy one-liners like the clown's 'A Diamont in the rough' lol.
I've been trying to use MV to make more action/arcade-style things happen, and your game showcases some cool possibilities.
Would you be willing to explain at a high level how you did the bullet eventing? Is the bullet an event that spawns next to him depending on the direction he's facing, then moves across the map at high speed until it touches an enemy event?