Rikuo is a playable character in Darkstalkers: The Night Warriors, Night Warriors: Darkstalkers' Revenge, Darkstalkers 3 and Vampire Hunter 2. Rikuo, along with Sasquatch and Jon Talbain were omitted from Vampire Savior 2.
Rikuo is one of few characters who can poison the opponent, stunning them. He can also trap them in a bubble of water or freeze them in place with a wave of sound in his "Sonic Wave" attack. His Dark Force in Darkstalkers 3 fills the screen partial way with water as he rides the waves on the back of a makai beast known as a Mach Crab.
Darkstalkers (Vampire)
- Main article: Darkstalkers: The Night Warriors/Moves
| Command normals | Input | Notes | |
|---|---|---|---|
| Land Fisher |  or  +MP or HP
|
Up close | |
| Spinning Current | +HP
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| Special moves | Input | Notes | |
| Trick Fish (backward dash) | ES | +K
|
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| Sonic Wave | ES |   +P
|
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| Poison Breath | ES |  +K
|
|
| Screw Shot | ES | , + P
|
|
| Crystal Lancer | ES | +MP or HP
|
Up close |
| Gem's Anger | ES | +MK or HK
|
Up close |
| SP moves | Input | Notes | |
| Aqua Spread | +3P or 3K
|
||
Night Warriors (Vampire Hunter)
- Main article: Night Warriors: Darkstalkers' Revenge/Moves
| Command normals | Input | Notes | |
|---|---|---|---|
| Land Fisher | or +MP or HP
|
Up close | |
| Cataract Cry | In air, or +MP or HP
|
Up close | |
| Spinning Current | +HP
|
||
| Special moves | Input | Notes | |
| Trick Fish (backward dash) | ES | +K
|
|
| Sonic Wave | ES | +P
|
|
| Poison Breath | ES | +K
|
|
| Screw Shot | ES | + P
|
|
| Crystal Lancer | ES | +MP or HP
|
Up close |
| Gem's Anger | ES | +MK or HK
|
Up close |
| EX moves | Input | Notes | |
| Aqua Spread | +2P or 2K
|
Hold both P or K buttons. When released, you shoot a rising beam from the ground whose location varies depending on how long they are held. | |
| Sea Rage | +2P
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| Water Jail | +2P
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| Direct Scissors | +2P
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Level 3. Original or HK colors only | |
Darkstalkers 3 (Vampire Savior)
- Main article: Darkstalkers 3/Moves K-Z
| Command normals | Input | Notes | |
|---|---|---|---|
| Land Fisher | or +MP or HP
|
Up close | |
| Cataract Cry | In air, or +MP or HP
|
Up close | |
| Killer Vortex | In air, +HK
|
||
| Spinning Current | +HP
|
||
| Special moves | Input | Notes | |
| Riverside Drop | ES |  +P or K
|
Usable only on downed opponent |
| Sonic Wave | ES | Charge , +P
|
|
| Poison Breath | ES | Charge , +K
|
|
| Trick Fish (motion) | ES | +K or +K
|
GC |
| Crystal Lancer | ES | +MP or HP
|
Up close |
| Gem's Anger | ES | +MK or HK
|
Up close |
| EX moves | Input | Notes | |
| Aqua Spread | +2P or 2K
|
2K for homing version | |
| Sea Rage | +2P
|
||
| Water Jail | +2P
|
||
| Direct Scissors | +2P
|
Level 3. LP or MP colors only | |
| Dark Force | Input | Notes | |
| Ocean Rage | P+K of the same strength | 3K to mount and dismount | |