Bubble is an arcade platformer built with SwiftUI, featuring physics-based bubble mechanics, layered enemy AI, and a real-time combo multiplier system. Game Mechanics: - Bubble physics: projectiles transition from directed travel to upward float upon wall contact, with a 7-second lifetime before auto-pop - Enemy AI: 3 distinct behavior profiles — Blob (slow patrol), Spinner (erratic mid-speed), Bouncer (high-speed aggressive) - Trap window: enemies remain vulnerable for 6 seconds before breaking free — timing and prioritization are critical - Combo engine: consecutive pops within a session yield increasing score multipliers Level Design: - 20 progressively difficult levels with hand-placed platform layouts - Companion rescue objectives add a secondary challenge layer alongside the primary clear condition - Score system incentivizes speed and multi-pop efficiency Technical Specifications: - Platform: iPhone only, iOS 15.0 or later - Built entirely with SwiftUI — no third-party game engine or dependencies - Audio powered by AVFoundation - Haptic feedback support via UIKit - Fully offline operation - Zero analytics, zero data collection, zero permissions required All progress is stored locally on your device. Bubble requires no login, no network access, and no account. Download and play immediately.