Shy Guy's main weapon is a spear that controls lightning.
Shy Guy also holds a very large arsenal of weapons, including;
A bullet Bill Cannon, Bombs, A Blowtorch, Anvils, Paperclips, A Trident, A Scythe, A Mace, and Paint.
plus he can fly with balloons, his propeller, and a jetpack.
and he has a Pirate Ship, an Airship, and a weird Tank made out of building blocks.
He also wields a Hammer and a Slingshot
He has Pyrokinesis, and he can heal himself
Jeez, i think it would have been easier to list the things this guy doesn't have!
He has a large arsenal of throwing items, including:
Green Shells, Red Shells, Bomb Shells, Spiny Shells, Fireballs, Iceballs, Hammers, Boomerangs, and the dreaded Blue Shell *Shivers*
He can fly at a decent speed and good control with Paratroopa Wings
He can fly at a very fast speed and low control with the Super Cape
He can become invincible with the Kamikaze Shell
and He can heal himself using hydrokinesis