The challenge
Build a portrait arcade game that feels immediate with one thumb, while giving short runs enough depth to reward practice.
The approach
The controls stay deliberately simple: drag anywhere to move, avoid incoming hazards and graze them closely to build score multipliers. Twelve grazes charge a blast that clears the screen. Eight escalating waves, a visible hitbox, labelled power-ups, a daily challenge and Game Center rankings add variety without complicating the core interaction. Version 1.1 rebuilt the hazards in 3D, added four weapons and a hangar of ships earned by grazing.
The outcome
A free, offline-capable arcade game with fast restarts, no advertising and a scoring system designed for repeat play.