Egg Dash (2D Mobile Game)

This multi-mode endless runner tries to encapsulate the movement logic of Doodle Jump, Flappy Bird and Geometry Dash all in one, they are transitioned to and from when going through portals and the background and some front row elements are audio reactive.

Problem

The client wanted a polished, fast-paced endless runner featuring three distinct game modes (Geometry Dash, Doodle Jump, and Flappy Bird), all dynamically switching through portals. They needed:

• A fully functional multi-mode endless runner

• Smooth transitions between game modes through portals

• Progressive difficulty and increasing game speed

• Reactive backgrounds/audio (audio-visualizer style effects)

• Unique player movement logic for each mode

• Arrow-portal mechanics that dynamically raise/lower the player

• Full ad integration:

  • Applovin ads every 3rd death

  • Rewarded ads for revives

  • Banner ads during death screens

• Complete UI flow and game loop

• App Store build preparation, TestFlight setup, and asset creation

They required someone who could take their idea and singlehandedly transform it into a fully built, play-ready 2D mobile game.

My Role

Unity Developer, responsible for the entire project end-to-end.

I handled all gameplay programming, effects, UI, audio, monetization, level progression, art integration, build preparation, store assets, and testing.

What I Delivered

Core Gameplay Systems

• Developed three full game modes with unique physics and controls:

  • Geometry Dash mode (jump-to-avoid)

  • Doodle Jump mode (vertical bounce navigation)

  • Flappy Bird mode (tap-to-float fly physics)

• Built seamless mode-switching portals

• Implemented progressive difficulty and speed scaling

• Added arrow portals that elevate / lower the player onto platforms

• Developed obstacle spawning and pacing systems

Visual & Audio Experience

• Created reactive background and screen effects synchronized to music

• Designed timing-sensitive visual feedback for jumps, portals, and speed shifts

• Implemented polished effects, transitions, and animations

• Selected and integrated all music and sound effects

Game Flow & UX

• Built complete UI flow:

  • Main menu

  • Death screen

  • Revive sequence

  • Settings

• Smooth transitions between gameplay, death, and revive states

• Added micro-interactions and responsive feedback for mobile

Monetization

• Fully integrated AppLovin ads:

  • Interstitial ad every 3rd death

  • Rewarded ads for reviving

  • Banner ads during the death screen

• Ensured all ads were optimized for pacing and user experience

Production & App Store Setup

• Created splash screens and promotional images

• Prepared the entire project for production release

• Set up App Store Connect configuration

• Built TestFlight versions and handled internal testing

• Identified and fixed bugs before submission

• Published the app to the iOS App Store for the Client

Results

• Delivered a complete, polished 2D mobile endless runner built entirely from scratch

• The game featured smooth gameplay across three modes, dynamic visuals, and satisfying progression

• Ads and monetization integrated seamlessly with the game loop

• Client received a store-ready build, promotional assets, and a stable final product

• Game successfully prepared for TestFlight and App Store submission

This project showcases my ability to develop full mobile games end-to-end, including gameplay, effects, audio, UI, monetization, testing, and release preparation.

Tools & Tech

Unity, C#, AppLovin Ads SDK, Audio/visual sync systems, Mobile optimization workflow, App Store Connect, TestFlight