There are 3 achievements for bosses in this game. They apear at these levels:
-Level 3: VS Grabber
-Level 6: VS Maku and Dan
-Level 9: VS M.A.C.E

The bosses are easy. Sometimes they can be annoying when you meet them for the first time, but if you get the hang of them you should do it easily

Grabber

To get this achievement defeat grabber


Maku and Dan

To get this achievement defeat Maku and Dan


Giant Face

To get this achievement defeat M.A.C.E

There are 11 achievements for doing other things and are scattered across the whole game


Plumbing

Kill an enemy by doing a jump on him



Fish food

Make the fish kill an enemy 20 times
You can get this by playing these levels:

-Level 5: Metal Complex
-Level 7: Contrabrand Tech


Combustion

Burn enemies using the gas cylinder 20 times
You can get this by playing these levels:

-Level 5: Metal Complex
-Level 7: Contrabrand Tech
-Level 8: Bionic Gear


Swordsman

Get sword mech to the end of the level
You can get this only by playing level 7: Contrabrand Tech

The mech at the start of the level is a lot weaker in durability than the one you will see later. The game is programmed to make the enemy soldier go into the mech, but there is an very easy way to avoid that: Just shoot a grenade next to him while standing on the container or jump with a mech and swing a sword into him if you managed to go there with a weaker one


Pilot

Get rifle mech to the end of the level
You can get this only by playing level 7: Contrabrand Tech


Fly trap

Trap stalker in the black substance
You can get this only by playing level 8: Bionic Gear

To get this you must put the barrel on the open area between two platforms (First one has black chest on it and second a checkpoint), then you have to lure the stalker from that big ball container and when he stands in the middle (Above the barrel) shoot a grenade into the barrel











The Relic

Find the Relic
You can get this only by playing level 8: Bionic Gear

On top of the waterfall area there is the bridge control tower and two rock platforms. Jump on the highest one and then you should see and tree










Jump on it and then you should see a log. Jump on the highest pile of leaves and then on the log. After that you should see the relic











Smash

Smash 100 enemies using different objects


The best way to do that is on level 8: Bionic Gear while you are in a harpoon mech


Shake Shake

Shake the rocket from stalker
You can get this only by playing level 8: Bionic Gear

In the middle of the level there is a container that has a stalker with 3 missiles inside it. To get this you must catch one of the missile and shake it with your left mouse button. There is a way to cut his tail with the mech. The only thing you have to do is grapple onto the container and swing your sword 8 times to fully cut it










You can do the same with plasma turrets











Harpoon

Get harpoon mech to the end of the level
You can get this only by playing level 8: Bionic Gear

Note: Getting this is not that easy as it seems, especially at the end of the level. There is a lot of harpoon mechs and stalkers. There are multiple ways to destroy them

Here are the ways:

Harpoon mechs

1. On foot
- Come very close and shoot him with double rifle
- Jump back when he wants to use a sword
- Use grenade launcher when he wants to throw an object at you. This will significantly reduce the power of the throw
-Hide behind cover, jump or chrouch when he wants to grab you with harpoon

2. In a mech
- Throw objects at him from range
- Come close and use a sword only after he did and doesn't want to throw an object at you
- Throw objects at his while it flies to block it or catch it with harpoon
- Throw objects into his harpoon when he wants to grab you with it

Stalkers

1. On foot
- Come close and shoot him with double rifle or smg (Don't come too close because he will grab you)
- Jump back when he wants to use a tail sword
- Use grenade launcher when he wants to throw an object at you. This will significantly reduce the power of the throw
- Hide behind cover, jump or chrouch when he shoots the plasma shot
- Use blaster when he fires one of three missiles to destroy them

2. In a mech
- Throw objects at him from range (Avoid being too close because he will grab you)
- Come close and use a sword only when you are shielded by large object like some of the rocks, tree logs or even containers. They can't use anything when you have something large on harpoon
- Throw objects at his while it flies to block it or catch it with harpoon
- Throw objects into his plasma shot while it flies to block it
- Throw objects when he fires one of three missiles to destroy them or catch them with harpoon


Hardboiled

Complete the game on high difficulty
The only difference is that there is a bit more enemies compared to normal or easy and some of them are rank higher or upgraded