1 ice shard + 1 snowball = 4 snow shards
Secondary ammo: ice crystal, a new drop from ice/packed ice (50% chance if broken by pickaxe).
Fireball:
Shoots "small fireballs". 1 fireball can be crafted into 4 small fireballs.
Food:
Shoots puke/food mush. It can be made by combining 2 food items as a recipe, or dropped on the ground by pressing "P" for puke (configurable) while it also takes 2 (4) hunger from you.
Shuriken:
Shoots shurikens, and they can be picked up again. Consider this already done.
Laser:
You just need to stand in a light level of at least 7 (also works if only 1 of the light types is above 7).
Custom ammo for each gun.
Snow:
1 ice shard + 1 snowball = 4 snow shards Secondary ammo: ice crystal, a new drop from ice/packed ice (50% chance if broken by pickaxe).
Fireball:
Shoots "small fireballs". 1 fireball can be crafted into 4 small fireballs.
Food:
Shoots puke/food mush. It can be made by combining 2 food items as a recipe, or dropped on the ground by pressing "P" for puke (configurable) while it also takes 2 (4) hunger from you.
Shuriken:
Shoots shurikens, and they can be picked up again. Consider this already done.
Laser:
You just need to stand in a light level of at least 7 (also works if only 1 of the light types is above 7).