I'm sorry about that! You may want to try going to the Settings --> Playback Speed of this video and setting it to 0.75. I'd love to go slower in my videos but when some amigurumi can take me 2 - 6 hours to make I doubt many people would be willing to sit through such a long video. :(

@@MevvSG thank you for that tip!

That's a good question. I think I'll make a video about this next. But to answer your question, you could do the invisible decrease method, but because front and back loops are reversed you'd have to work through the back loops only of the next two stitches, then do a YO. But like you said, this method doesn't look as "clean" on wrong side crochet. I personally decrease in what I call the "skip stitch" method. You just skip the next stitch from your hook and crochet into the second stitch from your hook. If you have a tight enough gauge, stagger your decreases from round to round, and don't over stuff your work, you can pull this off without getting gaps in your work. But if you can't, the invisible decrease method is the next best thing.

That's correct, both terms can be used interchangeably.