Algodoo

Interesting effect.

this effect is nice!

Thanks guys!

who you gonna call

Ghost Busters!

very very scary, 10/10 scary

Thanks!

This is super cool! How did you do it?

Thanks. Asking me how I did it is like asking someone "how did you build your house?" There is no simple answer because it took a lot of work and many hours of my time.

how did you make this?

rarescratch2 -- Read my previous comment.

This seems really nice. It seems like you:
1. Did a bunch of things
2. Found a way to reverse the motion
That first step should've been the hard part, right?

I got the original idea from a scene by user "Chemist" called:

Time control beta

Click the link and take a look at his script!

Oh, one hint for ya.... There are some hidden lasers and a hox to the left of the text box and slightly above the plane. Those are for decoding key-presses. It's how we did it before "keys.isDown" command was implemented in Algodoo.

woag!