Using p5.js, I developed Z-Blast Arena, an arcade-style zombie shooter featuring multiple enemy types and progressive difficulty. The player controls a fast-moving avatar in an open arena, surviving waves of zombies that vary in size, speed, and behavior, including enemies that split into smaller forms when destroyed. Timed power-ups such as unlimited ammo and temporary shields add strategic depth and replayability. The game includes a real-time UI displaying score, kills, and ammo, and all sound effects were custom-produced using Audacity to create an immersive experience.