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Cave Story+ / Weapons guide

Cave Story+ weapons guide: Polar Star, Machine Gun, Snake, Spur and Nemesis

Compare the weapon trades before committing a Cave Story+ save.

Edition covered

Cave Story+ builds on the 2004 freeware Cave Story. These pictures are the 2011 PC Steam edition; Switch-specific additions and Cave Story 3D are not assumed by the route instructions.

6 items · one picture per entry · open a picture for full size.

Weapons

Polar Star in Cave Story+
How it fits: Simple early shots

Polar Star

Trade consequence: Retain it for the Spur route.

Reference

Machine Gun in Cave Story+
How it fits: Rapid fire; recoil movement at high level

Machine Gun

Trade consequence: Trades away the Polar Star.

Reference

Snake in Cave Story+
How it fits: Shots pass through walls

Snake

Trade consequence: Combines the Polar Star and Fireball via Chaba.

Reference

Spur in Cave Story+
How it fits: Charged shots with powerful later charges

Spur

Trade consequence: Requires the retained Polar Star.

Reference

Blade in Cave Story+
How it fits: Strong close-range attack with level-dependent behavior

Blade

Trade consequence: Can be traded for the Nemesis.

Reference

Nemesis in Cave Story+
How it fits: Strongest at its low level

Nemesis

Trade consequence: Experience changes it unfavorably.

Reference

Quick notes

  • Keep the Polar Star if planning the Spur. The Hermit Gunsmith can turn the retained Polar Star into the Spur later in the adventure.
  • Choose a trade for its behavior. The Machine Gun offers sustained fire and high-level recoil movement.
  • Protect experience in ordinary weapons. Most weapons gain levels from dropped experience and can lose experience when Quote is hit.
  • Read the Nemesis exception. The Nemesis is unusual because collecting experience makes it less effective.

Choose a trade for its behavior

Situations and decisions
GoalDecisionWatch for
Obtain the SpurDo not trade the Polar StarReturn to the Gunsmith later
Use Machine Gun movementAccept Curly’s weapon exchangeSpur is no longer available normally
Shoot through wallsConsider Chaba’s Snake tradeConsumes two existing weapons
Use the Nemesis wellAvoid unnecessary experienceIts progression is reversed
Maintain normal weapon powerAvoid damage and collect dropsGetting hit can reduce the level
Useful tip

The Spur is optional for the best ending; weapon choice and the Curly rescue chain are separate.

References
Guide references
ReferenceWebsite
Cave Story+ publisher listingstore.steampowered.com
Cave Story ending prerequisitescavestory.fandom.com
Curly rescue procedure discussiongaming.stackexchange.com