Gear 4th Luffy by ScribbledGuy on Newgrounds

Illustration by ScribbledGuy

Gear 4: GEAR SHIFT by GoldieSilverman on Newgrounds

BOUNDO MAN!!! by BAMRADICAL on Newgrounds

Zombie Piece by GoldieSilverman on Newgrounds

One Piece - Luffy is here by ShiraCartoonz on Newgrounds

Gear 4th Luffy by ScribbledGuy on Newgrounds

luffy gear 5 by tsuna741 on Newgrounds

Been gone for quite a while so here is to a good start. Luffy Gear 4 Snakeman X Bounceman : r/OnePiece

Seas Battlegrounds explaining of 4th move of gear 5 luffy

Gear 4 Monkey D Luffy by PanRysownik on Newgrounds

Gear 5 Luffy Animation