Simple 1500 Series Vol. 25 - The Keiba is a horse racing game in which the player can compete in differents tracks. The gameplay is really arcade since to gain speed the player has to press the X Button lots of time, but it also has to be careful not to tire so much his horse or the horse stamina will be over, and reduce to speed at the end of the race, so is better to be in the group and accelerate in the last part of the race to have some chances of win. The game features also a 2 players mode in which 2 human players can compete in the same race to know which of them will arrive in a better place.