Yie Ar Kung-Fu

Toughest achievement in Yie Ar Kung Fu here. This one basically requires you to defeat all 11 opponents in the game without ever losing a match. Although this may sound like a daunting task at first hand, once you get a bit of practice in and learn the startegy to beat all 11 of them you will unlock this achievement with time. Each opponent basically has a trick that you can use in order to defeat them. Below is a simple strategy for each opponent:

1. Buchu- Defeat him by normal means. Usually he will start out the fight by flying towards you. Crouch under this and he will end up in the corner. Now hold the direction towards him and rapidly press Kick to bring him down. If you're lucky you will Perfect him for the Perfection achievement here. If he gets away Just get close and mash Toward + Kick until he's finished.

2. Star- Distance is your enemy in this bout. So get in close by jumping in towards her. Her throwing stars are slow so you can take them out with well timed attacks if you want or simply jump up to avoid them. Basically just take her down with Toward Kicks like Buchu and she will eventually go down. Just make sure you stay close. Be sure to finish her quickly because if the fight drags on she will throw more stars at you.

3. Nuncha- Very easy fight here. Start it out by jumping towards Nucha then just spam Down/Toward + Kick. If he moves then jump after him and repeat this move until he is down.

4. Pole- Another simple fight. Jump towards him then hold down. Now spam the kick button. He will walk into this move until he is knocked out.

5. Feedle- Bonus Stage. Bulky bald guys will walk towards you from the left and right. All you have to do is press toward them and kick as they near you. Don't let them get too close. An alternative attack is Toward + Punch it works just as well.

6. Chain- Just like the Star fight you want to stay close to this guy and hit him with different low kicks. So jump towards him and hit low kicks until he falls out. He will pace back and forth and try to hit you with his chain. Just keep jumping after him left and right and use low kicks until he's down. I found that the diagonal kick you used against Nuncha works best here.

7. Club- This can be a stressful fight because it takes proper timing. Start the fight off by backing left into the corner. As Club approaches you get ready to press Away/Up + Punch once he is about to attck you. He will stop walking when he's about to attack so quickly hit this punch move when you see his legs stop moving. If timed right you'll hit him everytime. It's okay if you mess up the timing as you have an 8-block window of health. Repeat until he is knocked out.

8. Fan- Don't be intimidated by her fans. Just keep jumping left and right after her and try to land some Toward/Down kicks on her. She will keep pacing left and right and tossing fans so just stay on her with kicks and you will win.

9. Sword- Time consuming fight here. Look at the temple in the background, position yourself below the black door then jump straight up. Keep jumping upwards and press Down + Kick when you land. If you're lucky he'll walk into some of the kicks until he is down. If he keeps hitting you then back up a bit more and continue to jump and do two kicks every time you land, then jump again, repeat.

10. Tonfun- Most difficult fight thus far. Tonfun will pace back and forth and pop you in the head if you get close to him. Whatever you do, never go at him head one, you will lose every time. Best strategy I have seen to him is to start the fight by crouching and pressing punch. Once he gets close jump to the right, if done properly, you will be able to hit a low kick on him once you land. Once you land, hit or miss, immediately jump to the left and try to hit him, then immediately jump to the right, repeat these tactics. He will basically brush past you and you'll be able to hit a Toward/Down + Kick attack as he makes his way to the left. You have to zone him just right in order for this to work so practice this until you have it down before attempting Invincible.

11. Blues- Championship match here. This may also take pure luck. Use Oolong's Splits punch which is done by pressing Away/Down + Punch. Wait for Blues to get close then carefully hit this move, after that quickly jump to the opposite side of the screen. Wait for him to get close then hit the Splits punch again. Once his health is low, Blues will become increasingly rapid and more ferocious. I found that you can get extra hits on him if you get yourself in a corner and do a Away/Up + Kick. After that just mash attacks on him like crazy and hope you get his last 2 blocks of health down. Depending on how much health you have by this point, it will increase your chances of finishing him off.

There is also an old video of this being done which is also found below.

Because there is so much trial and error involved with this please take your time with this achievement. Most people tend to struggle against Tonfun and Blues so follow the tricks given here and in the video closely. Sometimes it will come down to luck and wits but you can also refer to some of the posts in THIS thread if you get too flustered. Just remain poised and you will get this with time.