Underway is a fast running game inside a tunnel.
⚡ The more score you get, the higher speed it will be.
⚡ if you were stuck, you can fly.
⚡ Colorful tunnels.
⚡ Diversity from 4-sides tunnel until you get the Circular tunnel.
⚡ The more score you get, the higher speed it will be.
⚡ if you were stuck, you can fly.
⚡ Colorful tunnels.
⚡ Diversity from 4-sides tunnel until you get the Circular tunnel.
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