How to make a Space Invaders shooting game in ScratchJr (Step by step follow along tutorial)

In this follow along kids coding video tutorial, I take you step by step, click by click and show you everything you need to know to create a Space Invaders game in ScratchJr. Designed for both kids and adults, this video is 100% child friendly, and is designed to be watched at home or in class so that you and the children you teach can create this game realtime.

You can also download the file here, plus find my contact details if you need any additional help.

#scratchjr #kidscoding #codeclub #homeschooling #followalong #computergamedesign

Time stamps

0:00 Intro
0:59 What you need and how o get the best from this video
1:53 How to create a custom background
2:55 How to create an alien
4:50 How to code the aliens to move down the screen together
9:55 How to code the rocket to move
10:32 How to create and code a joypad and buttons in ScratchJr to make characters move
13:21 How to create and code the button to fire the laser
14:07 How to create and code the laser bolt
18:39 How to create and code a scoreboard in ScratchJr
21:37 How to create and code a 'victory' end of screen when 10 aliens are destroyed
24:59 How to create and code an 'aliens have landed' screen
29:27 Some things that can go wrong and how to avoid them
29:52 Outro

[GoGoCalliewot]

Thanks for letting me make Space Invaders in ScratchJR.

[stoppastops]

Thanks for this tutorial Mr Vullo
I have worked through this tutorial with my son who is home schooling due to illness
We are having trouble with the laser/bullets becoming misaligned with the rocket and returning to a point above the rocket despite the code for the shot up being equal to the return. This results in the bullet/laser progressively moving further up and eventually coming from the bottom of the screen. Any idea why?
There doesn’t seem to be any difference in our code.
Many thanks 🙏

Edit:
I suspect the problem is pressing the fire button prior to the shot returning to the start position.
What options are there to fix that ? Disable fire button while shot is active (including return phase) or attach fire point to rocket nose somehow?
Am absolute noob to coding so not sure how to code either of those🤷🏽‍♂️
Many thanks for any help

[arnavgaming]

Hey mr vullo I completed the entire steps you gave but when I played it was lagging how do I fix that

[VadosD]

@MrVullo I'm maked eight ailens, But.. i maked shaders!