For some reason the original BoI topic is locked. Anyway, Rebirth is out, the "remake". It's no longer coded in Flash, so it actually runs great and even looks better. The graphics have been redone to be "16-bit", but honestly, I think that may have been a mistake. The effect is barely noticeable and it just looks like poor pixel art. It's not TERRIBLE by any means, but seems unnecessary. Also, the music has changed (for the worse in my opinion)
What else do you get? Well, like I said the game runs better. There's now a hard mode, there are about a billion new items, cards, pill effects, etc. New rooms, mechanics, etc. New characters. A ton of new content in general. It has it's ups and downs compared to the original, but if you liked the first one you'll definitely like this.
Oh, and it's free for PSPlus members this month for both Vita and PS4.