Ok Ng people here is the Walkthrough for Newground Pass 3
1) operator
2) script
3) patch
4) roses
5) properties
6) lantern
7) faint
8) autopsy
9) aidem
10) lovely
11) log
12) benny
13) before
14) lolcake
15) knee
16) workspace / Go left till you find a golden cup and click on it.
17) free
18) slam
19) flat
20) mouse / Click the cat's/right ear of the mouse.
21) circle
22) logic / Click the Nintendo DS start button.
23) ground
24) narrative
25) language
26) 351
27) pinnacle / Nessesary to complete if you want to have all the achievements :/
28) hedgehog
29) yo
30) You will choose whatever you want... / Click takeover for takeover achievement
or revive for revive achievement / Type in the password bar sbc / Click N/A under
the spear.

That concludes the level codes, but to get all the achievements, one must complete otehr objectives...
True Minesweeper: on level 29 just type in the given password, no need to complete the game
Wrong Turn: On level 16 go left. After 8 Wrong Ways go by you will find a gold trophy, click it
Scout: ok, well this is a good one to do right away. on level one, or any level really, hit tab. An angry face will come up and tell you not to do that. when that message comes up, look to the bottom left of the screen and click that small light gray box. Secret Area One revealed.
Observer: On level 20, click on the mouse's right ear, that's your right. its the white part for those of us too dense to get it, lol
Committed: On level 22, click on the Nintendo DS start button, tada! 3rd Secret location.
Too Much Free Time!: Which i suppose i have, btw lol, ok just type in sbc in the password box.
Insane: On the final level, level 30, click the N/a underneath the sword
The Secret Ammo Box: On level 4, Go to your right and the first gap you see, jump down it. Yes, i know it goes against video game instinct, but commit "suicide". You will find you land on a platform down below. Walk to your right, and there will be another small gap. Jump OVER it, not down it, and continue on. You will find a box with a halo. This is the Secret Ammo Box. Walk into it to get the achievement.
Weebl's Secret Island: Ok, don't freak. There is basically infinite space but the island is really close by. On level 13 go to the right to the edge of the pink. from there go up, into the Out of Bounds Zone. Go up until the stars stop. Keeping within the stars, go right again and you will quickly find a pink square. Click on the Trophy inside the pink Square.
Eagle Eyes: On level Six, complete the game on your first try. Just focus, it isn't too hard.
Click, click, click...: Level 27, just keep at it, after a while you'll get it. Just keep working at it. If it takes more than 15 minutes, start over. keeps you fresh.
Takeover: On level 30, Click Takeover
Revive: On level 30 Click Revive

The Final Super Password Found by completing every achievement is as follows:
q5v48e

Open Options, Click the Super Password OMG option, and type it in!

Any Questions, Please Don't Hesitate to ask me! Pm me, respond on this forum, whatever you'd like.
Thank you!