Ninja
The 10 Ninja sets, from best known to least known, each with the sets like it.
Emperor's StrongholdNo. 3053 · 1999 · 335 pieces
Ninja Fire FortressNo. 3052 · 1999 · 173 pieces
Flying Ninja FortressNo. 6093 · 1998 · 698 pieces
Stone Tower BridgeNo. 6089 · 1998 · 410 pieces
Robber's RetreatNo. 6088 · 1998 · 281 pieces
Samurai StrongholdNo. 6083-2 · 1998 · 198 pieces
Blaze AttackNo. 3051 · 1999 · 145 pieces
Shanghai SurpriseNo. 3050 · 1999 · 108 pieces
Ninja SurpriseNo. 6045 · 1998 · 112 pieces
Treasure TransportNo. 6033 · 1998 · 60 pieces