KiKi KaiKai

KiKi KaiKai is an overhead multi-directional shooter game that requires the player to move in four directions through various levels while attacking harmful enemies as they approach from off screen. As Sayo-chan, the player can attack by either throwing her special o-fuda scrolls in eight separate directions, or by swinging her purification rod directly in front of her. These techniques can be upgraded by finding special paper slips left by defeated enemies that will either enhance their power or improve their range. Sayo can be damaged by coming in contact with an enemy, and can only be hit once before she is knocked out and must resume the level from a preset continuation point. At the end of each level, the player must face a powerful boss monster that takes several attacks to defeat and is more difficult than normal enemies.

Several hidden items can be found by attacking objects with Sayo's purification rod, and can be used to either enhance her attack or grant the player points. Once a certain number of points are gained, the player will gain another life and have an additional chance to complete a level. When all of the player's lives are exhausted, a "number match" screen appears with a random 3-digit number in 50-base increments (100, 150, 200, 250, and so on). If the last three digits of the player's total score match the number displayed, they are granted a free game; if not, the game ends.