Press the red and blue - and + buttons to select your bet. Then, press the green Spin button to start the slots. Click a slot to make it stop. Once all 3 slots are stopped, the game will reward you depending on what the slots show. (See the Notes and Credits section for more details on this.)
If you run out of credits, you can click the green flag to start over with 50 credits. You cannot bet more than 5 credits. The slots spin faster the more slots are stopped. The payouts are as follows: One Rainbow: 1 times the player's bet Two Rainbows: 2 times the player's bet Three Rainbows: 10 times the player's bet Three of a kind (except Rainbows): The common number (Example: Three 4s earn 4 times the player's bet.) The Rainbow is a wild and it can stand for any number. It is possible to match multiple payouts in a single spin as the Rainbows are wild and also give extra credits even if there are only one or two of them. If this happens, then all of the appropriate payout values are added together and multiplied by the player's bet. (Example: If the player gets two 5s and one Rainbow, the player wins 5+1 = 6 times their bet.)