Learn SCRATCH with Real Code Examples
Updated Nov 25, 2025
Practical Examples
Make a sprite move by pressing arrow keys
Play sound on click
Build a simple chase game
Animate a conversation
Score-keeping mini-games
Troubleshooting
Check if the right sprite is selected
Verify event blocks are present
Ensure variable values update correctly
Check clone limits
Look for overlapping broadcast messages
Testing Guide
Run scripts directly from the editor
Use green flag to test entire project
Debug variable changes
Check event triggers
Test clone behavior
Deployment Options
Publish to Scratch website
Export project as .sb3 file
Run locally via Desktop
Use TurboWarp to embed on websites
Package as HTML using converters
Tools Ecosystem
Scratch Online Editor
Scratch Desktop
TurboWarp (faster runtime)
PenguinMod variants
Educational classroom tools
Integrations
Micro:bit
LEGO Mindstorms
Makey Makey
Webcam/video sensing
Extensions for music and pen drawing
Productivity Tips
Use comments and labels
Break code into events
Use broadcasts to organize
Optimize clone usage
Keep assets lightweight
Challenges
Managing many sprites
Complex clone interactions
Avoiding spaghetti-scripts
Performance drops with heavy logic
Limited data structures