Fireball

The Fireball (ファイアボール Faiabōru) is the second required weapon in Cave Story. It is received as a gift from Santa.
== Location ==
After obtaining Santa's Key and returning it to Santa, he will invite Quote into his house to give him a gift. Upon talking to Santa in his home, he gives the Fireball.
== Behavior ==
The Fireball is the only weapon whose shots are affected by gravity. Once a fireball hits the ground, it bounces several times before disappearing. Its shots are capable of traveling up slopes, notably those in the Bushlands.
Each shot of the Fireball launches two fireballs that deal combined damage. The Fireball can pierce enemies if the enemy is not killed by the initial damage done by the first fireball, though this happens more quickly than if the enemy was destroyed. The level 2 and 3 forms can deal additional damage with each Fireball.
== Available trades and upgrades ==
The player can hand their Polar Star to Chaba, along with their Fireball, at the Labyrinth shop. Chaba will ask Quote if he can take a look at both weapons. By allowing him permission, Chaba takes and combines them to form the Snake. This weapon combines similar behaviors of both the Polar Star and Fireball, and can go through walls.
== Trivia ==
* The game requires the player to visit Santa's house and obtain the Fireball. If they try to visit Chako's house before receiving the Fireball, Chako will ask Quote if he has met Santa yet.
* The theme and behaviour of the gun shares strong similarities with the Fire Flower in Super Mario Bros. games. As well as shooting fireballs, both only allow two bullets on-screen at a time, and the fireballs bounce along the ground.
es:Bola de fuego