None. Something I should mention: Tenshinhan and Chaio- Chao- whats-his-face never exist. Gohan never achieves mystic state. Goten isn't born.
Credit to penguioonkips for Jarvis. Credit to Luka for the Michael sprite. Storyline! The story follows the original plot until the android saga, where Rize is created by Dr. Gero, with d.n.a of Vegeta, Goku, and Freeza.. Rize rebels against Gero killing him. This ripple in time causes Goten to be stillborn. He eventually meets up with the Z fighters in the Majin Buu Saga, where Michael, a human trained in Martial arts, saves Rize from being killed by Buu. While Vegeta is about to blow himself up, Kaosu, Jarvis, and a revived Raditz emerge from seperate wormholes on earth. The saga continues, and the five fighters find the Z warriors on Kami's lookout, and offer their help. The martial artists stall Buu long enough for Trunks to arrive, and seemingly defeat Majin Buu. Buu absorbs Trunks and Piccolo, boosting his power dramatically. Son Goku is allowed out of otherworld via Former Supreme Kai's sacrafice, Vegeta is dead, and Son Gohan is killed by Buu when he decides to rush into the battle, much to Chi Chi and the other's pleads. Goku arrives, and Buu decides to absorb Goku for the advantage. With this power, Rize, Michael, Raditz, Jarvis, and Kaosu power up and use a full power Masenko attack to blow Super Buu away, and Kid Buu is never restored. The fighters from inside Buu are released, and the people killed are revived. Now, in the DBS area of the timeline, our story picks up....