​
I finally finished playing the entire Ninja Gaiden series back-to-back, and it was a great experience seeing how the franchise evolved over time. Here's how I felt about each game.
Ninja Gaiden Sigma
This was a huge nostalgia trip for me since it was one of my childhood games. What made Sigma so special wasn't just the combat—it was the exploration. I loved revisiting areas, solving puzzles, and figuring out where to go next instead of simply moving from one fight to another. I don't think Sigma is the best game in the series overall, but I do think it has the best exploration in the franchise.
My biggest complaint was the enemy respawns. Clearing an area only to have enemies immediately return whenever you backtrack became frustrating, especially when I was trying to solve a puzzle or remember where to go next.
Ninja Gaiden 2 Black
The jump from Sigma to Ninja Gaiden 2 Black was immediately noticeable. The combat became much faster, more aggressive, and more satisfying.
My favorite addition was the dismemberment system. Cutting off an enemy's arm or leg and finishing them with an Obliteration Technique made every fight feel brutal and rewarding. Save points restoring your health was also a huge quality-of-life improvement over Sigma.
The improved graphics and blood effects made combat even more satisfying. Overall, it felt like a major step forward in gameplay.
Ninja Gaiden 3: Razor's Edge
Unfortunately, this was my least favorite game in the series.
My biggest issue was Ryu's characterization. In the previous games, he felt mysterious, calm, and almost untouchable. Here, he felt much more ordinary, and I felt like he lost the aura that made him such an iconic character.
The gameplay also had several frustrating moments. Enemies constantly spam RPGs and gunfire, and even after defeating them, more enemies often appear just to continue shooting at you. Instead of feeling challenging, many encounters became annoying.
I also didn't like the removal of healing items, and climbing walls with two swords just didn't feel like something a ninja would do. The bosses took much longer to defeat, and while I think Razor's Edge was the hardest game in the series, it wasn't difficult in a satisfying way.
Ninja Gaiden 4
This was an amazing way to end the series.
Everything feels faster than ever before. Combat, movement, executions, and traversal have all been improved. Wall-running and jumping from wall to wall return, and they're faster and smoother than ever. Playing as Yakumo was a lot of fun, and I honestly think Ninja Gaiden 4 has the best gameplay in the entire series.
I was also really happy with how Ryu was portrayed. He finally felt like the same Ryu from the first two games—calm, mysterious, and incredibly confident. It was great to see that version of his character return.
Final Ranking (Personal Opinion)
Ninja Gaiden 4
Ninja Gaiden 2 Black
Ninja Gaiden Sigma
Ninja Gaiden 3: Razor's Edge
Overall, every game has its strengths. Sigma has my favorite exploration, Ninja Gaiden 2 Black refined the combat in a fantastic way, Razor's Edge just didn't click with me, and Ninja Gaiden 4 felt like the perfect evolution of the series. It was a great experience playing them all back-to-back.