This is a tool-assisted speedrun. For more information, see http://tasvideos.org/2310M.html
Bishi Bashi Special is a collection of 46 mini-games with a variety of rules.
Here Spikestuff is playing through them quickly while picking up the maximum score of 10 for each. Getting the high score sometimes has odd conditions, like the elephant race where finishing 7-2 is needed for the 10.
For a TAS of a related game, see the Salary Man Champ (http://tasvideos.org/2377M.html) publication.