Retro Arcade Shmup · Capcom U.N. Squadron Remake & Evolution
Maximum Firepower
A high-octane side-scrolling dogfight arcade shooter inspired by Capcom's 1989 classic U.N. Squadron. Evolved from early Unity engine milestones into a modern AI-assisted sprite powerhouse. Tested and applauded by family, and demanded for release by close friends.
When Your Nephew and Friends Tell You to Ship
It started as an experimental coding sprint with OpenAI Codex: could modern language models reliably write math-heavy sprite sheet animation handlers, weapon collision matrices, and arcade momentum loops?
The answer came during the playtest. James handed the controller to his nephew—who has watched him tinker with games for over a decade and usually responds with polite encouragement. This time, he stopped playing, looked up, and said he was genuinely impressed. Shortly after, friends Luiz and Alex took a turn on the build and gave an immediate verdict: “James, you need to put this on the App Store right now.”
The 2014 Unity Archive: Solo U.N. Squadron Single-Level Remake
Back in 2014, working completely alone, James built a solo single-level remake of Capcom’s classic arcade shooter U.N. Squadron in Unity. These archive milestone recordings capture that initial solo journey—building flight physics, vulcan cannon bullet pooling, parallax scrolling mountain terrain, enemy flight waves, and a climactic multi-phase boss dogfight from scratch. A decade later, Maximum Firepower is the modern AI reincarnation and spiritual successor to that ambition.
Unity Demo 1 — Core Flight Dynamics
The initial sandbox: testing pitch, roll response, screen clamping, and 60 FPS input responsiveness inside the Unity engine.
Unity Demo 2 — Weapon Pooling & Gatling Fire
Testing rapid-fire vulcan cannons, projectile memory pooling, and collision triggers against early target dummies.
Unity Demo 3 — Parallax Terrain Scrolling
Building the classic side-scrolling atmosphere: 3-layer parallax backgrounds simulating high-altitude alpine airspace at speed.
Unity Demo 6 — Enemy Squadrons & Formations
Introducing aggressive enemy flight formations, synchronized diving vectors, and tactical dodging corridors inspired by Capcom classics.
Unity Demo 8 — Boss Encounter & Climax Dogfight
The culmination of the Unity prototype era: an intense boss battle demanding weapon mastery, beam evasion, and clutch split-second maneuvers.
U.N. Squadron DNA
Classic 16-bit arcade tension. Heavy weapon upgrade trees, directional secondary munitions, ground-attack bomb runs, and multi-tier boss armor.
Codex Sprite Engine
Automated sprite sheet slicing, hit-box rigging, and seamless state-machine code generated and refined with AI assistance.
Playtest Approved
Field tested by the hardest critics: James's nephew halted mid-session to offer genuine props, and Luiz and Alex demanded a commercial release.