Source: Twitter

From Fandom’s page about this art:

Featured Characters and Series

• Antarctic Adventure - Pentarou
• Boktai - Django
• Bomberman - Bomberman, Red Bomber, Black Bomber, Aqua Bomber, Pink Bomber, Louie
• Busou Shinki - Edelweiss, Taonyao, Lilith
• Castlevania - Simon Belmont, Alucard
• Contra - Bill Rizer, Lance Bean
• Dankira!!! - Sora Asashi, Mahiru Hinata, Reiji Yano
• Elebits - Green Elebit
• Frogger - Frogger
• Ganbare Goemon - Ganbare Goemon, Ebisumaru, Sasuke, Yae
• Getsu Fūma Den - Fūma
• Gradius - Vic Viper, Moai
• Hisho Collection - Aya Kakitsubata
• Konami Man - Konami Man
• Konami Wai Wai World - Konami Lady
• LovePlus - Nene Anegasaki, Rinko Kobayakawa, Manaka Takane
• Magician’s Quest - Three Unnamed Students, Black Cat
• Meine Liebe - Orpherus
• Metal Gear - Solid Snake, Raiden, Liquid Ocelot, Kazuhira Miller, Quiet, The Boss, Metal Gear Mk. II, Peace Sentinel, Genome Soldier, Cardboard Box
• NeverDead - Bryce Boltzmann
• Otomedius - Aoba Anoa, Erul Tron
• Parodius - Tako, Koitsu, Aitsu, Pentaro
• Power Pros - Power Pro-kun, Akio Yabe
• Rumble Roses - Reiko Hinomoto, Dixie Clemonts
• Sengoku Collection - Oda Nobunaga, Ieyasu Tokogawa
• Silent Hill - Bubble Head Nurse, Pyramid Head, Robbie the Rabbit
• Suikoden - Tir McDohl, Riou, Nanami, Jowy Altreides, Hugo, Chris Lightfellow, Geddoe, Razro, Freyjadour Falenas, Nash Latkje
• Tokimeki Memorial - Ruka Sakurai, Kouichi Sakurai, Maki Hoshikawa, Yuki Akiha, Shiori Fujisaki, Hikari Hinomoto, Yukiko Makihari, Kei Hazuki, Teru Saeju
• TwinBee - TwinBee, WinBee
• Yie Ar Kung-Fu - Oolong
• Zone of the Enders - Leon Stenbuck, Jehuty, Nohman, Ken Marinaris, Dingo Egret