Game Builder Garage released on the Nintendo Switch last night.
Thoughts within.

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As the tutorial began, the game asked me to jump up to a platform. But OMG, the jump button doesn't work.
The tutorial guides you through adding Jump functionality to the B button.
"Now switch to the game. OMG! Jump works. What happens if we disable it? OMG! Jump doesn't work. Now what happens if we enable it? OMG! Jump works!!"

The tutorial carried on in this ludicrously hand-holding methodology.
"Teaching" through insane repetition is this game's way of teaching you things.
"Copy this platform. Now move the platform here.. NO NOT THERE. HERE.. WHERE I SAID.."

It's hand-holding to a T. Everything has its place, and you MUST DO AS YOU'RE TOLD.

Place the object here. Make it do this specific task at this specific time.

The only time it actually let me use an ounce of my own imagination was right at the end of the tutorial when it allowed me to change the colours of the platforms.. AND NO MORE THAN THAT..

I didn't enjoy the tutorial.

I can't exactly remember the WarioWare DIY tutorial, but I definitely do remember thinking "Boy, this is a good tutorial."
I don't feel that way about this one.
It was a very stringent teacher, and it didn't let go of my hand at any step of the way, until right at the very very very end.

The tutorial session (It goes on until the end of "the first game", then lets you free) took roughly 20 minutes or so. After which the proper free-mode was unlocked, and I could start actually doing things of my own choice.

I'm currently unsure if I have to drag myself through more tutorials to unlock features, but the hour or so I spent trying to work out the "language" resulted in a lot of issues.
Trying to (of course) make SpikeDislike lead to a lot of dead ends.
Apparently I can't force an object to be at a specific set of co-ordinates..?

I mean, I can do it in the editor.. But doing it programmatically doesn't appear to be an option.
I can change the object's speed, but not an exact position, and even though there's a toggle between Acceleration and Speed, it appears that changing the speed also changes the acceleration..!?
hmmm...

Further investigation will be necessary, I think.