Sonic CD/Tidal Tempest

A water zone.

Tidal Tempest 1
Move to the right down the hill, jump over the gap, and then continue right and fall as the ground crumbles. Go into the passage in front of you and climb up it, pick up the ring box along the way. You will reach a locked door that is opened by a switch on a circular moving platform. Stand on this switch and stay on it until you are on the other side. Jump over the spikes and jump straight into the water, then go forward. Use the spring you see to ascend the wall, then keep going forward until you reach the checkpoint.

Once you reach the first checkpoint, just keep running forward until you reach the next one. To avoid falling in the water, jump over the gaps. Do not make the mistake of jumping over the crumbling ground, just run over it.

You will quickly reach the second checkpoint, keep jumping over the gaps until there is one that you are forced to jump in. Go forward until you reach the dead end with the glass pipe. You must go around the pipe by going down to the left until you reach solid ground. Get the checkpoint and jump into the glass pipe. You will land next to 2 springs adjacent to each other, use this for time travel. Jump over those springs until you reach the wall, in which a hidden spring will launch you upwards. Feel free to jump down the pit directly in front of you for a ring box, though it is not necessary. Wait for the spiked ball to get out of the way, then jump past it. Jump over the gap afterwards. You are now done with the level, jump down and run towards the goal sign.