Groovekeeper Logo

Operation Germ

In Fall 2025, I gathered a team to participate in the Gwinett County Public Library's Build-Your-Own-Game Game Jam. During the jam we made Operation Germ, a boss rush game where you play as a anthropomorphized T-Cell and have to defeat a colorful cast of germs invading the body. The game relies on your ability to parry the enemies' moves and use them against them

Role Team Lead & Player/Boss/UI Programmer
Team Size 6 Developers
Duration 9 days
Engine/Tools Unity / C#

Player Parrying

The player character in Operation Germ can fire two ammo types or parry enemy attacks to steal copies of them. Every enemy move has a custom collider designated for parries; after successful parrying, the system assigns a duplicate of that ability to the player's active target slot for immediate use. Each projectile behavior is stored in a Scriptable Object containing data for both boss and player variations.


Enemy AI

Boss encounters in Operation Germ use a state machine that dynamically changes attack routines based on past moves and player actions. To keep the workflow clean, I made a modular base boss class that handles the state system. This let me and the other team programmer put unique boss mechanics in child classes, making development easier.


Art Implementation

To implement the art made for the game I made good use of Unity's animator component. For certain backgrounds, I would animate different elements moving to add life to scenes and menus. The player and bosses all use an animator with a clean layer set-up to get animations implemented fast.

Back to Games