PrinceWatercress plays Sonic Blast (as Knuckles) - Part 4 of 5

Blue Marine is very, very particular in where it wants you to go, which can make it difficult to clear, much less get to the Chaos Emerald shard.

First | Previous | End

Blue Marine Zone

For Act 1, head all the way to the right for an extra life. When you drop down into the water, the current will strictly carry you towards a pipe. Go through the pipe, then jump and use the glide to get to one of the platforms in the water, then make your way to the right and go up to the pipe above where you came out from. Enter it, and you'll enter the second section.

From here, you'll need to make your way to the top, then go all the way to the left and jump on the switch to drain the water. Just like in past Sonic games, you can't stay in the water forever, and you'll eventually get a countdown from nine to zero signifying that your air is low. Look for a place where small air bubbles float upwards so you can jump into a big bubble to refill your air, or enter a pipe so 

you can reset the countdown for a little while.

Enemies here include octopi that move up and down as well as crabs that move back and forth.

The Act 1 special stage is here. Once you drain the water, go down and to the right. When you see the purple springs, jump over them, then use the platforms or climb the wall to get to the big ring portal.

In Act 2, go all the way to the right to get to ten rings. There is a fake wall to the right; go through it and enter the pipes for rings. You'll then end up when you need to be anyway. You'll need to make your way down and through the fallaway floors. When you see the small platforms, go all the way to the right and glide to enter a pipe and enter the second section.

From here, go all the way to the right and climb up the wall for then rings, then climb up the wall above it for a fake wall. Go right and hit the switch, then enter the pipe above the switch to refill your air. Climb back into the pipe, then head up and to the left. With the switch pressed, you can reach the next special stage.

The Act 2 special stage is here. With the switch from earlier pressed, you can make your way to the ring portal. Knuckin'!

Now it's time to do everything you did before, but when you take the pipe above the switch, enter the one to the left of where you come out. From here, go left and enter the pipe below the one you came out of. Go left to the next pipe, then drop all the way down and go left for a checkpoint. Make your way to the right, and when you can't go right anymore, start making your way up. Enter the top most pipe, enter the pipe to the left, then jump after you come out to get to the goal.

For Act 3, you'll need to make your way to the top by walking across the fallaway floors and going up the pipes. If you make it to the top, there will be a switch to the right. If you end up in the water prematurely, you can still go to the right, climb up the right wall and hit the switch anyway. This will help you get a 10 Ring monitor.

Once you reach the bottom, you'll face Robotnik. Jump into him whenever he shoots the harpoons forward, then wait two passes while staying on the far left side of the screen. When Robotnik shoots the harpoon downward, jump into the big bubble that he creates. You'll now have plenty of air to fight Robotnik with. From here, he will then shoot the harpoon forward once, then do the two passes before giving you another air bubble. Keep jumping into the visor of Robotnik's sea machine and you'll eventually defeat him in the hardest part of the game so far.