Fantastic tool, Dan. I first saw it in a video from SamYam. Tried it out in my entry into GDKO (game dev knock out) Round 4, where the focus was to recreate the Atari classic: Centipede.
Final game can be played here, if anyone is interested: Centipede 3000.
I also made a dev log for this entry and referenced both you and SamYam. Really appreciate you making something like this available for free. Cheers!