Collect
Absorb bubbles from vents to increase Bob-L’s size and available ammunition.
Mini Jam 84 · 2021
Bob-L
Propel a sentient bubble through a deadly facility by firing pieces of its own body.
Project Overview
Your body.
Your ammunition.
Your only escape.
Bob-L is a physics puzzle game created by a four-person team for Mini Jam 84: Bubbles.
The player controls a sentient bubble trapped inside a mysterious facility filled with traps, hazards and environmental obstacles.
Bob-L cannot move conventionally. Instead, the player fires pieces of the bubble’s body to generate recoil and propel it through the environment.
- My Role
-
Code, Sound
and Level Design - Engine
- Unity
- Platform
- Windows
- Team
- Four Developers
- Development
-
Mini Jam 84
Released · 2021
Design Concept
Bob-L transforms one resource—bubble size—into movement, ammunition and survival.
Holding the mouse button charges a shot and determines how much of Bob-L’s body will be fired. Larger shots provide stronger propulsion but consume more size.
This creates a constant trade-off between reaching the next safe position and retaining enough size to survive the remaining facility.
Core Player Loop
Aim
Choose a direction and charge the shot according to the required movement.
Propel
Fire part of Bob-L’s body to generate recoil in the opposite direction.
Escape
Avoid traps and reach the facility exit before running out of size.
Resource System
Every movement decision carries a cost because propelling Bob-L physically reduces the player.
Size
Represents Bob-L’s remaining body and capacity to continue.
Charge
Determines the size of the fired bubble and strength of the recoil.
Recoil
Launches Bob-L in the opposite direction of the shot.
Recovery
Bubble vents restore size and allow the player to continue navigating.
My Contribution
My work focused on building the facility’s hazards and using them to create a complete level-design progression around Bob-L’s movement.
Trap Programming
Obstacle Systems
Level Design
Collaborative Game Design
Sound Design
Gameplay Testing
Created alongside Minde, Charley and James.
Development Challenge
The team completed Bob-L under an extremely tight deadline, submitting the final build less than twelve minutes before the jam closed.
The unusual movement required careful tuning so charged shots felt understandable while retaining the unpredictability of physics-based propulsion.
Designing the facility also required balancing trap timing, visibility and difficulty around a character that could only move indirectly.
Additional interface elements, including the minimap, added further complexity during the limited development period.
Game Gallery
Inside The
Facility
Gameplay footage and screenshots showing Bob-L’s recoil movement, industrial environments and obstacle-driven level design.
Final Reflection
Bob-L became a cohesive team project built around a focused and unusual movement mechanic.
I am especially proud of the level design and how the facility’s traps, routes and environmental progression interact with the bubble resource.
The finished result was strengthened by each team member’s contribution across programming, rendering, modelling, sound and design.
Download Bob-L on itch.io