IPPO ZUTSU
Turn Steps Into Epic Battles
The problem IPPO ZUTSU solves
Daily Fitness Gamification
- Step Tracking: Uses smartphone sensors to automatically count real-world steps
- Movement Animation: Character responds to your actual movement - runs when you move, stands when you stop
- Challenge Progression: Complete increasingly difficult step-based challenges with boss encounters
RPG Character Development
- Equipment System: Purchase and equip powerful gear (Fire Gloves, Ice Sword, Iron Shield, Lucky Charm)
- Stat Boosting: Items provide attack, defense, and speed bonuses
- Character Growth: Equipped items directly affect combat performance against bosses
Earning Real Cryptocurrency
- MOVE Token Rewards: Earn actual cryptocurrency for completing challenges
- Graduated Rewards: Higher difficulty levels offer greater token rewards
- Gas-Free Transactions: Backend handles blockchain fees for seamless user experience
NFT Collection & Trading
- Rare Item Collection: Earn unique NFT items with different rarity levels (Uncommon→Legendary)
- Blockchain Ownership: True ownership of digital assets through Ethereum smart contracts
- Equipment Store: Purchase items using earned tokens in the in-game marketplace
Social Fitness Features
- Team Creation: Create custom fitness teams with friends
- Team Challenges: Collaborate toward common fitness goals
- Social Dashboard: Connect with other players on similar fitness journeys
Cross-Platform Accessibility
- Mobile-First Design: Optimized for smartphone usage during workouts
- Real-Time Tracking: Live step counting and progress visualization
- Secure Authentication: Civic Auth integration for Web3 identity management
Secure Web3 Integration
- Wallet Security: MetaMask integration with secure private key management
- Transaction Safety: Duplicate prevention and error handling
- Gas Optimization: Backend handles blockchain transactions to reduce user costs
Comprehensive Progress Tracking
- Achievement System: Completed levels are permanently saved
- Inventory Management: Visual equipment system with stat calculations
- Activity History: Complete transaction and reward history in wallet dashboard
Challenges we ran into
1. Device Motion API Cross-Platform Compatibility
The Problem:
The biggest challenge was implementing reliable step detection across different devices and browsers. iOS Safari requires explicit permission for "DeviceMotionEvent", while Android browsers have different behaviors.
How I Solved It:
- Created a comprehensive permission handling system that detects device type
- Added fallback mechanisms for browsers that don't support acceleration data
- Implemented both "acceleration" and "accelerationIncludingGravity" detection
- Added debug information to help tune step detection thresholds
2. Blockchain Transaction Management & Gas Optimization
The Problem:
Managing blockchain transactions efficiently while minimizing gas costs for users was extremely complex. I had to handle:
- Duplicate transaction prevention
- Gas fee optimization
- Transaction failure recovery
How I Solved It:
- Implemented a dual-mode reward system: direct transfer (0 gas for users) vs assign/claim
- Added transaction deduplication using unique keys
- Created comprehensive error handling for different blockchain failure scenarios
- Built backend wallet funding mechanisms with debug endpoints
3. Real-Time Step Detection Algorithm
The Problem:
Creating an accurate step detection algorithm that works across different walking styles, device orientations, and movement patterns was incredibly challenging.
How I Solved It:
- Implemented a peak-detection algorithm that identifies acceleration spikes
- Added cooldown periods (300-600ms) to prevent double-counting steps
- Created adjustable thresholds for different sensitivity levels
- Built a simulation mode for testing without real movement
Tracks Applied (2)
Authenticate with Civic Auth
Civic Technologies
Build for Core Connect Global Buildathon
Core DAO
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