Tube Symbols may slide onto the reels on any spin, except every 10th spin, and leave behind golden frames. When another Tube Symbol lands on a golden frame, it duplicates the golden frame to a random position. On every 10th spin, the Train Arrival feature triggers, super-charging the golden frames with random features.

A train arrives on every 10th spin if at least one frame is present on the reels and awards one of the following features: • Wild: All frames turn into Wilds, substituting for all paying symbols. • Ways Multiplier: Every golden frame receives a random ways multiplier of 2x, 3x, 5x, 7x, or 10x. • Cash Prize: Every frame receives a random stake multiplier. Instant Cash Prize pays out as a multiplied amount of the original stake by 1x - 50x.

3-5 Train Scatters triggers 9-15 Free Spins. The Bonus Round starts with 3 golden frames, which may change their positions on each spin. When the reels stop spinning, all frame positions receive the same random feature of Wilds, Ways Multipliers, or Cash Prizes. During Free Spins, additional Train Scatters move you 1 station forward on the progress bar. Each 3rd station has a bonus including 1 or 2 additional golden frames, win multipliers of 1x, 2x, or 3x added to all wins until the end of Free Spins, and 3-5 bonus spins.