62		Ninja-Kun: Majō no Bōken (PlayStation 4, 2015)
62		Rad Action (PlayStation 4, 2015)
62		The Legend of Kage (PlayStation 4, 2015)
61		Rygar (PlayStation 4, 2014)
55		Moon Patrol (PlayStation 4, 2018)
55		Ninja Combat (PlayStation 4, 2018)
45		Top Hunter: Roddy & Cathy (PlayStation 4, 2018)
45		The Aquatic Adventure of the Last Human (PlayStation 4, 2018)
45		The King of Fighters 2002: Challenge to Ultimate Battle (PlayStation 4, 2018)
45		Hungry Shark: World (PlayStation 4, 2018)
45		The King of Fighters 2001 (PlayStation 4, 2018)
44		Metal Slug 2: Super Vehicle - 001/II (PlayStation 4, 2017)
44		Burning Fight (PlayStation 4, 2017)
44		Blue's Journey (PlayStation 4, 2017)
44		Spinmaster (PlayStation 4, 2017)
44		Mutation Nation (PlayStation 4, 2017)
44		Fatal Fury (PlayStation 4, 2017)
44		Fighter's History Dynamite (PlayStation 4, 2017)
44		World Heroes 2 JET (PlayStation 4, 2017)
44		Art of Fighting (PlayStation 4, 2017)
44		World Heroes (PlayStation 4, 2017)
44		Mutant Night (PlayStation 4, 2017)
44		World Heroes Perfect (PlayStation 4, 2019)
43		Contra (PlayStation 4, 2016)
43		Double Dragon II: The Revenge (PlayStation 4, 2016)
42		Crazy Climber (PlayStation 4, 2015)
42		The King of Fighters 2002: Challenge to Ultimate Battle (PlayStation 3, 2015)
42		Crazy Climber 2 (PlayStation 4, 2015)
42		The King of Fighters 2001 (PlayStation 3, 2015)
42		Double Dragon (PlayStation 4, 2015)
42		Scramble (PlayStation 4, 2015)
42		Renegade (PlayStation 4, 2015)
40		Wackylands Boss (PlayStation 3, 2011)
40		The King of Fighters 2002: Challenge to Ultimate Battle (PlayStation 2, 2004)
40		The King of Fighters 2001 (PlayStation 2, 2003)
40		Art of Fighting (PlayStation 3, 2010)
40		Derrick the Deathfin (PlayStation 3, 2012)
40		Crazy Climber (PlayStation, 2002)
40		Metal Slug 2: Super Vehicle - 001/II (PlayStation 3, 2011)
40		World Heroes (PlayStation 3, 2011)
40		Fatal Fury (PlayStation 3, 2010)

Notes: Games similar to Kid Niki: Radical Ninja, Games like Kid Niki: Radical Ninja, Irem Corp., HAMSTER Corporation, PlayStation 4, Action, Side view, 2D scrolling, Ninjas, Sony PlayStation, PSX, PS1, PS2, PS3, PS4, Game Similarities.