Okay, so this one’s a weird little Flash gem—Billy & Mandy: The Fright Before Christmas. You’re basically stuck in Santa’s workshop, except everything’s gone horror-movie wrong, and evil toys are coming at you. Billy’s there, Mandy’s there, and Grim’s just… Grim, I guess. You switch between them with the spacebar, and each one’s got their own attack style. Billy’s kinda slow but hits hard, Mandy’s quick, and Grim’s just floating around being Grim.

It’s janky in that old Flash way, but there’s something charming about it—like, of course Billy would accidentally turn Christmas into a nightmare. The mouse controls are simple (click to shoot), but the toy waves get pretty chaotic. If you miss Flash games, this one’s a fun little nostalgia trip. Just don’t expect anything deep—it’s pure, dumb Billy & Mandy energy.