Achievements you will get from a normal play through with no extra effort.

1: Saving the clan
2: Rise to the challenge
3: Strike them down
4: Monkey Around
5: Forged will
6: Deflect evil
7: Sudden movements
8: Overpowered
9: Returned to ethos
10: Tools of the trade
11: Gadgetmaster
12: Boring

Note 10 & 11: You will need to unlock weapons any time they are different at save points.
Note 12: Blow up the big drill machines that enemies come out of to get this one.

1: Maximum power, A thousand souls, 100%
See horheristo's All HP / SP collectible guide on Steam then defeat the final boss.

2: Lonely robot
Return to Chapter 6 after you have defeated the train boss and search the room where the boss originally was located.

1: Smashing

2: Fight with honor

3: Long distance

4: Not a scratch

5: Focused effort

6: Blade's plenty

7: Dry socks

8: Floor is lava

9: Ping pong

10: Show off

11: Fast track

12: Attacking aggressively

13: Pogo master

14: Eye for an eye

1: Pacifist

2: Wouldn't hurt a fly - Note: This likely can be done with a maxed out character by revisiting Chapter 2.

3: This is my boat

4: Airtime

5: No you - Just parry a lot of enemy projectiles by tapping toward them when they are close. You will likely get this naturally if you play through the game a few times.

6: Super Ninja

1: Live forever
The main things you need to get this achievement are patience and a good understanding of each boss fight so you can down them with no risk of a death. Beyond that the most dangerous things are spikes and instant death pits + the elevator in stage 2 since it has plenty of spikes and enemies to knock you into them. I suggest practicing the elevator before attempting this achievement.

2: Don't touch the paint
This section takes quite a bit of practice. For most of the first section you will want to just mash fire as you are going then towards the end use a charged shot on both the last set of enemies + the 2 floating ninja star traps. After that make sure you work in charge shots everywhere you can on the second section especially for the enemies with the shields.

3: Born ready
This is the achievement that forces you to master the game in order to get it. By the time you get this achievement you will know every boss pattern and you will have to work out a safe path through every section since your hit points are very low. This also is probably the mode where you will realize that extra jumps after shadow dashes only are available when you actually have SP so keep that in mind. The only real advice for this achievement is to remain vigilant, have patience, and play strategically instead of rushing haphazardly to your doom.

4: Fast as lightning
Sub 3 hours seems like a big task after your first play through but if you managed to complete Born ready you will be able to fly through the game like a true cyber ninja.