These are free, parent-guided lessons for kids to build small creative AI projects. They are self-paced, currently available in English, and use local browser projects.

Lesson 4 — Make the Game Yours

Turn your first mini game into a safer V2 by changing one thing at a time. Output: my-first-mini-game-v2.html — a free, parent-guided lesson.

Free · Parent-guided
Safety rule: Use ideas, not secrets. Do not enter real names, school names, addresses, phone numbers, emails, passwords, photos, medical details, financial details, account information, exact locations, or private family details into any AI tool.
For parents
This lesson teaches safe iteration
The goal is not to make the game huge. It is to help your child learn how to improve a project without breaking it — by keeping a safe copy and changing one thing at a time. You may help copy, save, and open files; let your child choose the change.
The project
What your child will build
A second version (V2) of the Lesson 3 mini game:
  • One safe copy of the original V1
  • One V2 file
  • One small change at a time
  • A tested, playable version
  • Saved as my-first-mini-game-v2.html

The key rules

Rule 1
V1/V2 Rule
Keep the old version (V1) safe before changing anything. Only edit the V2 copy.
Rule 2
One Change Only Rule
Change one thing, then test. Don't stack changes — it's how projects break.
Rule 3
Feature Parking Lot
Write extra ideas down for later instead of adding everything now. Tiny stays tiny.

Lesson path

1Open your Lesson 3 gameFind your my-first-mini-game.html file and open it to remember how it works.
2Make a copyDuplicate the file so the original stays safe. Never edit the original directly.
3Rename the copy my-first-mini-game-v2.htmlThis copy is your V2. You will only change the V2 file.
4Choose one small changePick a single beginner-friendly change from the Safe change ideas below.
5Ask AI to help with only that one changeGive the AI your V2 code and ask for just that one change — nothing else.
6Paste carefullyReplace the V2 code with the updated one-file version. A parent may help.
7Test the gameOpen V2 in the browser and check it still works and the change is there.
8Keep, undo, or try a smaller changeIf it works, keep it. If it broke, undo or ask for a smaller change, then test again.
Pick one
Safe change ideas
Beginner-friendly, one-at-a-time changes:
  • Change the character name
  • Change the background color
  • Change the goal message
  • Make the game a little easier
  • Make the game a little harder
  • Add a clearer win message
  • Improve the reset button text
Keep it simple: avoid multiplayer, accounts, online scoreboards, uploads, external images, complex levels, or networking. Save big ideas in the Feature Parking Lot for later.

Prompt cards

Copy-friendly prompts for a parent-approved AI assistant. When copying prompts, use ideas, not secrets.

Prompt 1Choose one change

Help me choose one small beginner-friendly change for my mini game. The game should stay simple: one character, one goal, and one simple rule. Do not ask for personal information.

Prompt 2Make only this change

Here is my one-file HTML game. Please help me make only this one change: [describe one change]. Keep everything in one HTML file. Do not add external libraries, accounts, uploads, or online features.

Prompt 3Compare V1 and V2

Explain the difference between my V1 game and my V2 game in simple words. Focus only on what changed.

Prompt 4Fix after a change

My V2 game broke after one change. Help me find the problem. Keep the fix simple and keep it as one HTML file.

Versioning
Save-as / versioning
  1. Keep the original my-first-mini-game.html (this is V1).
  2. Duplicate the file.
  3. Rename the duplicate my-first-mini-game-v2.html.
  4. Edit only the V2 file.
  5. Test after every change.
  6. If V2 breaks, go back to V1 or undo the last change.
Need help saving? See Save Your Files.
Test it
Test checklist
  • V1 file is still safe
  • V2 file opens
  • The game still starts
  • The one chosen change is visible
  • The main rule still works
  • The win/score/message still works
  • Reset still works
  • No private information is included
  • No upload/account/online feature was added
Stuck?
Troubleshooting — common fixes
  • I changed too many thingsGo back to V1 (or undo) and make just one change at a time, testing after each.
  • V2 brokeUse Prompt 4 to find the problem, or go back to V1 and try a smaller change.
  • I lost my V1 fileThat is why we keep a safe copy. If V1 is gone, you can rebuild it from Lesson 3.
  • AI added extra featuresAsk the AI to remove the extras and make only the one change you asked for.
  • AI split the project into several filesAsk the AI to put all the HTML, CSS, and JavaScript back into one single HTML file.
  • The change made the game confusingUndo it. Keep the game tiny — one character, one goal, one simple rule.
  • The game became too hardAsk the AI to make it a little easier, keeping the same one rule.
  • AI asked for private detailsDo not share them. Say: “Use made-up, general ideas only. Do not ask for personal information.”
More: Troubleshooting.
Compare
Open the sample custom game
See a finished V2 example to compare against. It opens locally in a new tab — no internet needed. This is an example, not your child's project.
You made a V2 version of your first game. 🎉

You kept your V1 safe, changed one thing at a time, and tested as you went — that's how real projects improve without breaking.

Next: Lesson 5 — Create an Interactive Story →