Monkey Ball

Monkey Ball is the first game of the Super Monkey Ball series released in Japan as an upright arcade cabinet. Monkey Ball served as the base for its successor Super Monkey Ball and all later games in the series. It was released as a NAOMI arcade cabinet in Japan a year prior to the release of Super Monkey Ball.

You play as one of four monkeys, each one trapped inside a transparent ball. You are tasked with reaching the goal in each level by tilting the playing field, resulting in your monkey "rolling" forward or backward. Several obstacles lay in between your monkey and the goal, and a time limit means you can never spend too long on a given level. Bananas are found across the levels, which both contribute to your score and grant an extra life per 100 collected.