This is a play-through using Oyamada Manta in the PS1 game Shaman King: Spirit of Shamans. Read on below for more information...
Oyamada is a hidden character in this game, and is within the last set of special hidden characters you can unlock and select.
===== About Oyamada Manta =====
A kid in a shirt and work trousers, probably a school uniform. Also has 'emo'-ish hair. Uses an imaginary Spirit of himself as an angel/cupid.
This is the same character who appears on the main menu, as well as in the Options screen (the options screen is his house).
As you can see in the video, he is one of those really small characters that can evade some mid-to-high moves, and can be somewhat hard to hit. Generally a bit of a nuisance.
===== About SK:SOS =====
Shaman King: Spirit of Shamans is based on the Japanese manga/anime series of the same main title. The characters seem to be represented excellently in the game through the in-fight sprites and artwork. Voice-acting is also very good as well (as you'd expect from Japanese voice-actors). Due to the high number of sprites, animation and detailed backgrounds, the game runs at 30fps.
The gameplay is quite unique for a fighter, as each character possess a 'spirit', which means you get some out-of-the-ordinary moves. The game has a very simple and flexible combo system which involves just sequence pressing between the strike buttons in virtually any order you like to create a combo. There is also one button dedicated to executing a character's special moves, therefore, you won't find any quarter-circle or half-circle command moves here folks. Another unique feature is your spirit banner often popping up to tell you to press an input, this is used to build your spirit meter/gauge percentage should you press it successfully.
The music is also very well composed, and has plenty of genre variety which is designed to fit each character specifically.
Overall, a high quality game that is very rounded off and complete.