Ninja Gaiden: Ninja Gaiden / Shadow Warriors - updated

No major change in gameplay but:
- Some sprites of strange/ugly enemies have been replaced by most common ones (exit bikers, boxers, armored dogs and football players).
- Some damages have been changed. Eagle: damages reduced from 3 to 1 (3 = no sense for a simple bird) ; Green Ninja: increased from 1 to 2 ; Bomberhead' sickle: from 1 to 2 ; Bloody Malth's lightning bolts: from 3 to 4 ; Jaquio's fireballs: from 1 to 2 (that's a challenge!)
- Various graphical adjustments (for example, no more flickering in Barbarian's sprite).
- Some palette changes.
- Bloody Malth don't move his buckler anymore.
- Barbarian's axe is now a little more dangerous.
- Time Freeze has been removed from the game (the level 6-3 was really too easy). Replaced by a simple bonus.
- And others little changes!

Thanks to:
- Ninjax
- FXedit, old but still good Hex editor
- yychr

Shadow Warriors (Europe).nes
CRC:709C9399
SHA-1:CF5155ED1DC701DABD70EE8959214D07E91D8DAB
Ninja Ryuuken Den (Japan).nes
CRC:D7CB398F
SHA-1:C7D971420D6A2679904F3EB4C0DABC25BCC80C72
Ninja Gaiden (USA).nes
CRC:7C4A72D8
SHA-1:15F245161179AB1959B7DC20E82ADD024D23AA3D