グランドレース is a free iPhone game developed by AON SOLUTION K.K. It is an online racing game where players can train and develop their own characters to compete against players from all over the country.

The game offers various character development modes, allowing players to earn development parameters based on their performance. There are no limitations on the number of times players can train or race, providing a seamless and accessible gameplay experience. However, players need to be mindful of their character's condition during the training process.

One of the unique features of グランドレース is the ability to showcase rewards earned in the game in a ranking format, allowing players to compete with others nationwide and compare their achievements.

To play, players start by training their characters to improve their abilities. There are three types of abilities that can be allocated based on player preference, allowing them to participate in races that suit their strengths. Before each race, players determine the speed using a gauge, which plays a crucial role in determining the race rankings.

Enjoy the convenience of training and racing with your favorite characters in グランドレース!