Super Street Fighter IV

1. Set A.I. to Very Easy or Easy (Easy is slightly more aggressive helping to fill the Ultra meter faster) and Rounds to 7.
2. Pick someone with an easy Ultra/Super (I recommend Akuma as well: see below)
3. Do damage/take damage and finish with Ultra or Super. Rinse and repeat as necessary.
This should net you 4 Ultra/Super finishes per match.

*A few notes:
- Akuma's Ultra and Super both work well because there will be fewer accidental special finishes. I.e. You try to do the Ultra Hadoken and finish the guy off with a regular Hadoken instead. This will help keep down the wasted rounds.
- I've mixed up Ultras and Supers while playing. Ultra first round (Super meter gets about 2/3 full), Super the second, Ultra the third, and finishing the match with a Super.
- While going for this you will likely pick up the 100 Ultras, 100 Supers, 50 Ultra finishes, and 50 Super finishes along the way.
Have fun!

If you want to get this one by fast boosting and you have another controller, try this.

1. select vs mode and "player vs player", set max round to 7
2. player1 select Akuma, ultra 1, player2 select Zangief, with 25% handicap (don't select 0% or sometime you will beat him with LP)
3. control Zangief, jump hk, hk, hk, 3hk will make Akuma have 1 slot ultra, then control Akuma use ultra, bang, you got 1 ultra finish.
4. remember to press START to skip win pose
5. after you got 4 ultra finish, just select REMATCH

player1 use Akuma because he has low defense make you get more ultra gauge, and his ultra 1 save your time.
player2 use Zangief because he has high offense.

In average, you get 3 ultra finish per minute, 180 per hour.

Note. You can't get ultra finish Icon and Title by local boosting. You can only get them by online battle. But ultra finish in online battle counts to this achievement.

i got mine by going on versus 7 rounds versus cpu normal played as juri versus makoto, using juri this achievement is even easier, just trigger 1st ultra combo and finish makoto before the bar drops counts as an ultra combo!

AS the achievements specifies you must get 365 super or ultra finishes, you should get this achievement if you play the game a lot and you use supers/ultras. It is a good idea to pick a character with an easy to use damaging ultra or super, I would suggest using Akuma as his first ultra (wrath of the ragging demon) takes around 60% of there health bar fully charged.

A quicker way to get this is to just keep running thorught arcade mode on easiest and taking them to about 40-50% health then using the ultra.

To use Akumas ragging demon attack input these commands:

(light punch), (light punch) ,back, (light kick), Heavy Punch

This move doesn't have to be done super fast but it will not work if you take to long.

also if you want to use his super its like this:

(light punch), (light punch(, forward, light kick, Heavy Punch.

Good luck and happy hunting.