For the uninitiated, Hyper Dragonball Z is a fangame basing its gameplay mostly off of CPS2 Capcom titles - Street Fighter Alpha and Darkstalkers. It has alpha counters, EX attacks, focus attacks, super jumps, and more. It also has over a hundred palettes for each character, voice options, original sprites, some original voice acting. High quality stuff!
Majin Vegeta uses the some animations from the vanilla Vegeta, but most of his moves are new or significantly altered. Like with the previous characters, some of his moves are based on Hyper Dimension or the classic Butouden games and some are original. The previous, non-SSJ Vegeta has also been updated with redrawn sprites.
Looks like Babidi fights with his crystal ball and summons. I haven't tried it out yet, but I'm guessing he's a smaller release similar to Mr. Satan and Saibaman, since there's been only a brief hint of him (which I had thought was a joke).
Downloads:
South America
Europe
US
Some other Hyper Dragonball Z videos if you're curious:
HDBZ - Majin Vegeta vs Gohan AI level 6
HDBZ - Majin Vegeta vs SSJ Goku
HDBZ - Freeza Combo Video March 2015
Hyper DragonBall Z Online match: Traweezie(Frieza) vs SoliderSunday(Goku)
Hyper Dragon Ball Z EVO Pack - FT3 crp (Vegeta) vs Zino (Gohan)
NCR 2014 After Hours: Hyper Dragon Ball Z with AS|SDR|Hellpockets
Coolest DBZ Fan Game Ever! - Steam Train
[MUGEN] Gohan Z2 Movelist Video
Vegeta Z2 for Mugen Movelist Showcase
HYPER DRAGON BALL Z - Demo Trailer 2014 - HAPPY BIRTHDAY TORIYAMA-SAN! (ORIGINAL UPLOAD)
[WINMUGEN] Gohan Z2 custom voice reveal: Corey Holland