EDIT: Looks like he deleted his tweet/video. Fortunately MechaBreaker put together a transcript of the video:
"I'm not really sure where to start, because there is a lot that I need to say, but if you're watching this video then you've probably already heard about the plagiarism allegations. And now you're waiting for my side of the story."
"So, here it is."
"I take complete ownership of what happened with the Dead Cells review. There were a lot of circumstances surrounding it, but at the end of the day I was the editorial lead on it, so if anything, that makes it my responsibility."
"My review process isn't really that different from other reviewers that I've met while working as a professional in the games media industry, and the formula stays the same for whatever product I'm reviewing. I do as much research as I can about it, wether it's a game, a product, or an eventm I try to look at all resources that I have available to me before I start formulating my own critical opinions, so that I can offer the most cohesive possible review."
"The bottom line is that, what happened with the Dead Cells review was not at all intentional."
"So, with that said, I just wanna apologize to everybody at IGN for all of the undeserved criticisms and doubt that may have been sparked in their credibility as a respected source for games media. I mean, I made a lot of great friends over there, and the last thing that I ever wanted to do, is to dissappoint any of them or put any of them in a bad place. There are so many very talented, hardworking, and creative people at IGN, and each and everyone of them deserves praise for the great content they put out every single day. I have nothing but the utmost love and respect for everyone there, so just please, don't swarm them with any mean and undeserved negative attention."
"I'd also like to apologize to MotionTwin, the developer of Dead Cells. It sucks so that their game got caught in the middle of this controversy, because it really is a great game and a lot of people worked very hard on it for a long time, so I hope that it gets the recognition that it deserves for the right reasons."
"As for Boomstick, I have nothing but the best wishes for him, and I hope that his wave of success lasts a long time. A lot of you watching this video might not know my story, but I also started out as a youtuber, so I completely understand what it's like being a small youtuber, trying to make a name for yourself, I mean, Boomstick, just keep doing what you're doing man, it looks like you have a great thing going, and I've got nothing but respect for you."
"I was lucky enough to get noticed on IGN on my youtube channel, which if in case you're wondering, is in fact, all of my own original work. So you kan keep looking Kotaku, and please let me know if you find anything, which by the way, their news editor Jason Schreier tried to imply that my Fifa 18 review was also inauthentic by claiming that I copied it from NintendoLife, and that's, that's just so not the case. I mean, maybe he was implying that if you have similarly opinionated reviews, then you're just plagiarizing, or maybe he's just trying to get as many clicks off of my name right now as possible, or maybe he just likes kicking people when they're down. I don't know, I mean, check it out for yourselves and you be the judge."
"But one thing that I do know, is that it's not very fun being the target of a gigantic lynch mob, who wants nothing more than to feed into your destruction. The amount of hate and threats that I've been receiving on social media has been pretty staggering, and I get it, people are mad and rightfully so, but it's one thing to go and harass me, berate me with hateful words and threats and it's a whole other thing to look up my family members and spread hateful comments on their social media accounts. That's just, that's just not okay, I mean, not on any level. They have nothing to do with this, so, so please just leave them out of it."
"There have been so many of you that has also reached out to me with kindness and words of support, and honestly I can't, I can't thank you enough for that, because it's probably been the only thing that's been keeping my head straight throught this whole nightmare, and it gives me hope for the future, because honestly, I love what I do and I want to keep doing it. I don't want to stop making videos, I want to prove you that I can be better, better than I ever was before, like I said I take full responsibility for what happened with the Dead Cells review and I know that I'm gonna have to do a lot of work to earn your trust back, but that's okay, because I'm gonna do everything that I can to make that happen."
"The truth is I didn't get into this industry to make money, or to get famous, I started this whole journey, because I love videogames and even more so because I love making content about them, I mean, I wanted to share my passion for entertainment with you and maybe inspire others to go out and chase their dreams as well."
"So that's everything I have to say. Thank you so much for your time and thank you for everyone who's been so incredibly supportive throughout this entire living nightmare, and I hope, I really hope I get to see you guys again soon."