Location: Hermit's shack in the First Cave. You cannot miss getting this weapon as it is required to progress past the introduction of the game.
Level 1 - Shoots a single bullet. Deals 1 damage.
Level 2 - Shoots a double bullet that fly slightly farther. Deals 2 damage.
Level 3 - Shoots a larger bullet that flies farther than the other levels. Deals 4 damage.
Note: This is the first weapon you get, and can be trated away at multiple points in the game. You can only trade it once, so be sure to make your decision before you accept the first trade you can get!

Location: Inside of a chest in the Egg Observation Room. You CAN miss this, however it is extremely unlikely to do so.
Level 1 - Launches a small missile that does moderate damage. Deals 8 damage.
Level 2 - Launches a large, very fast missile that does a high amount of damage. Deals 15 damage.
Level 3 - Launches three small missiles at once, while still only using one ammo. Deals 8 damage each (24 total).
Note: This weapon features a blast zone, which damages enemies nearby to the impact area.

Location: Found in Santa's house at the begenning of the Bushlands. You must get, and return his key to him first however.
Level 1 - Shoots a single fireball that deals 4 damage (maximum 2 fireballs).
Level 2 - Shoots an orange fireball that deals 6 damage (maximum 3 fireballs).
Level 3 - Shoots a blue fireball that deals 6 damage (maximum 4 fireballs).
Note: Good for shooting up or down hills, as it rolls.

Location: Inside the Assembly Hall in Migima Village, behind the fireplace, you must have the Jellyfish Juice/Jelly to obtain this item.
Level 1 - Short range, deals 1 damage, and shots hang in the air a bit. Must tap the fire button.
Level 2 - Range nearly doubles, deals 2 damage, and you can hold the fire button.
Level 3 - Hold the fire button to summon bubbles. Release it to send them all in whatever direction you're aiming to make a powerful shotgun-type blast.
Note: Weak on the first level, but gets much better as you level it up.

Location: Curly Brace will offer to trade it to you for your Polar Star after defeating her in the Sand Zone.
Level 1 - Fires small bullets that deal 2 damage each.
Level 2 - Fires larger bullets that deal 4 damage each.
Level 3 - Fires very large bullets that deal 6 damage each. In addition, this level adds recoil to the weapon when you shoot.
Note: This is the first option you have to trade away your Polar Star, but it means you will miss out on the Snake or the Spur!

Location: Talk to King after you defeat Enraged/Rabid Tokoro, as he's laying on the floor, and he will give you the Blade.
Level 1 - Throws a small sword that deals 15 damage. Has medium range, but can only fire one blade at a time.
Level 2 - Throws a larger sword which has a shorter range, but deals 18 damage.
Level 3 - Summons King's soul that flies a short distance in a straight line.
Note: The downfall of this is you can only use one at a time.

Location: The item shop in the Labrynth can combine your Polar Star and Fireball together to give you the Snake.
Level 1 - As many shots as you can shoot, fires through walls. Deals 4 damage.
Level 2 - Moves like a snake, goes through walls. Deals 6 damage.
Level 3 - Longer range, still goes through walls. Deals 8 damage, and 4 shots allowed at once.
Note: The only weapon that can shoot through walls, useful in Speedruns.

Location: The Hermit will take back his Polar Star, but give you the Spur in return after he sees how much use you've put on the Polar Star.
Level 1 - Same shot as Polar Star level 3. (Without the 2-shot at a time limit.)
Level 2 - Fires a thin laser. If it kills the enemy, then it will go through them. Deals 15 damage.
Level 3 - Same as level 2, but it shoots two lasers. Deals 50 damage.
Level Max - A powerful shot, wide angle laser that can destroy most enemies in one hit. It can deal up to 100 damage.
Note: This weapon must be charged to be used, similar to a Mega Man X buster.

Location: Found in the Boulder Chamber after defeating Balrog, and having him help you move the boulder.
Level 1 - Launches a small super missile that does moderate damage.
Level 2 - Launches a large super missile that does a high amount of damage.
Level 3 - Launches 3 small super missiles at once, while still only consuming one ammo.
Note: A heavily upgraded missle launcher.

Location: Trade the Blade in with the little man in the door at the bottom of the Outer Wall. This is available only after you return the Little Man to his wife.
Level 1 - Great range (at least 1/2 of screen), incredible damage (12), and a slight plowing effect. Limit 2 shots on screen, but they travel fast.
Level 2 - Damage is halved to 6 damage, although it's still a decent weapon. Range is about the same, limit 3 but they don't travel as fast.
Level 3 - Does 1 damage and has less range than the level 1 Polar Star.
Note: The only weapon that gets WORSE as you level it up!