For Arcade mode you get:
Always
-
Stealthbox
-
Grav Glov
-
1 Special:
- Garand
- Sniper
- Crossbow
-
1 Rifle:
- Bullpup
- Tommy Gun
- Bug Blaster
- Laser Rifle
-
1 Shotgun:
- Double Barrel
- Super Shotty
- Assault Shotgun
-
1 Melee:
- Chainsaw
- Katana
- Sword & Shield
- Toy Hammer
- Laser Saber
- Telepuncher
- Hatchet
-
2 Pistols
- Bert Gun
- Magnum
- Pirate Gun
- Dual UZI
- Magnum Laser
- Phase Zapper
Randomly (50% chance)
- Plushy 'Nade