Killer Instinct

After getting to 30 Fight Challenges, go into Player vs CPU single match on the easiest difficulty. While it will take time to load at first, the loading times vanish after the first match.

**I find Fulgore the easiest opponent, he doesn't seem to do anything for 90% of the match.
So,

Go into player vs CPU, and prioritize the following combos:
(Vs Matches and Supreme Victories will rank up)
(these will rank up in Combo Hits, Autos, Combo Enders, Ragged Edge and Eclipse)
(Back, Forward + Punch), Punch, (Back, Forward + Punch), Punch, (Back, Forward + Punch), Punch, (Down, Up + Heavy Punch)
(Back, Forward + Kick, Light Kick), Punch, (Back, Forward + Punch), Punch, (Back, Forward + Punch), Punch, (Down, Up + Heavy Punch)
(the below one will rank up in Aerials, Manuals, and the same as above)
Jumping Punch, Punch, (Back, Forward + Punch), Punch, (Back, Forward + Punch), Punch, (Down, Up + Heavy Punch).


I would advise getting in as many throws as possible.

When the Opponent is in danger, prioritize the following combo:
(What combo you do doesn't matter, but ALWAYS end with an Ultra(Back, Forward + All Punches)
(this will rank up Combo Hits, Autos, Ragged Edge, Eclipse, Shadow Moves, Ultras)
(Back, Forward + 2xPunch), Punch, Punch, (Back, Forward + 2xPunch), Punch, (Back, Forward + Punch), Punch, (Back, Forward + All Punches)

Advanced:
At the end of the Ultra Combo, hit Down, Up and 2xPunch and it will hit the opponent on the way down. During this attack, hit 3xPunch and 3xKick to perform a Combo Ender(In this case, his flip kick from KI Gold)

After 30-35 matches matches, you should be on 80 Fight Challenges. If not, keep going