Takosuke first appeared in Parodius Da! (1990) as his father Tako's first option, and as a playable character in Gokujō Parodius! (1994), taking the place of Tako. Appearing alongside him is Belial, a yellow octopus with its sex unknown.  Unlike his father in MSX game, Takosuke uses the Salamander weaponset, as opposed to the traditional Gradius weaponset.
His younger brother Takohiko takes Takosuke's place in Jikkyō Oshaberi Parodius (1995).
In 1996, Sexy Parodius, Lecher Tako A (a.k.a. Takosuke) opens an agency that helps clients with problems, (that the player has to fix.) and has hired Pentarou as his secretary. At the end of the game, he turns coat, and steals the profits of this agency and is later killed by the games' final boss, Kaori.
Takosuke is Appear with the CD Drama in Kyuukyoku Parodius in 1997.
His offspring, Takosuke Jr. would later appear in Paro Wars (1997).
Takosuke makes cameo in the games: The boss battle in Ganbare Goemon: Yukihime Kyuushutsu Emaki (1991), His arms trapped in a giant plastic by Marine World in Ganbare Goemon: Uchuu Kaizoku Akogingu (1996), He disguised himself as a pirate in Ganbare Goemon: Kurofune Tou no Nazo (1997), Several characters from Konami on Print Station in Mitsumete Knight R (1998), The enemy that spits out the snowball in Goemon: Toukai Douchuu (2005), It also sinks the sea and spit balls of rice in Yume Penguin Monogatari (1991) and the title appears in New International Track & Field (2008).
Takosuke did also appears as a playable character in Konami Krazy Racers (2001) in Game Boy Advance and Krazy Kart Racing (2009) in Iphone OS.
Takosuke's was makes a appearances in the Two Parodius Pachinko Games, CR Parodius Da! EX (2000) and CR Gokujō Parodius! (2006).
Takosuke's latest appearance was a cameo in the Parodius Pachislot game, Gokuraku Parodius (September 2010) : he'll be peeking Hikaru in the beach, and eventually have a baseball match with her. Also Old Lecher Tako A (a.k.a. Takosuke) takes out the cartridge from the console, blows, and put the game with his arms.
Belial and Takohiko
Belial makes appearance with the second player in Gokujo Parodius, and Takohiko takes in Takosuke's place in the first player in Jikkyou Oshaberi Parodius. Belial is appear makes a the simulation wars in Paro Wars. With the Continues the Pachinkos, Gokuraku Parodius, Belial makes last appearance in the pachislot.
Weapon Set
M = 2-Way Missile
D = Tail Gun
L = Ripple Laser
O = Shadow Option
? = Shield / Octopus Vase
Trivia
The names Takosuke and Takohiko are both portmanteaus of "tako", the Japanese word for octopus, and common endings of Japanese male names, "-suke" and "-hiko".