Undersea Bolt

Undersea Bolt is a sub-level in Sonic Boom: Rise of Lyric. It is an undersea route that leads from the submerged Ocean Purification Plant to the southern beaches of Bygone Island.

Having collected the Tidal Crystal in Ocean Purification Plant, Sonic and Amy escaped through Undersea Bolt where they were pursued by Tunnelbots.

Trivia

 * Despite only Sonic and Amy being playable for this level, Tails and Knuckles' icon are present among the character select icons.
 * This might be due to Tails and Knuckles originally being meant to be included in Undersea Bolt.