3000 M is the seventh and final subchapter of Chapter 7: The Summit B-Side in Celeste. The subchapter takes the player to the summit of the mountain to face off against vertical wind challenges separated by checkpoints. Wall bounces are introduced to the player near the end of the subchapter. The red Crystal Heart to complete the B-Side can be found in this subchapter.
Gameplay[]
The player will enter this subchapter into the downward blowing wind section (where the gravity is high) at checkpoint 20. This section lasts from checkpoints 20-15, and after reaching the purple orb at the end of checkpoint 15, the player will be taken to the next room which has the low gravity upward blowing wind section. This will go on from checkpoints 14-9, and then the player will be taken via purple orb to the next room with no wind. At checkpoint 8, the Bird will show the player how to do a wall bounce, which is a technique needed to complete most challenges remaining in this chapter. When reaching the end of checkpoint 1, a red flag is seen at the top of the mountain just like the end of the A-Side, but this is not the end as a secret area underneath the flag will reveal a purple orb to take the player to the cassette room where the Crystal Heart is.
Strategies[]
Room 1
Starting at checkpoint 20, you'll need to jump and dash up to grab the falling platform to the right to get higher, then jump off and dash up again and grab another falling platform on the left. Wait a bit for it to start falling, then jump to the left and grab the next one, then again for the next one, then you can reach checkpoint 19. Alternatively, just go left from the starting position and grab the wall, then jump up and dash straight up twice and you can reach checkpoint 19 in a far easier way.
At checkpoint 19, you need to jump right and dash right to grab another falling platform. Climb it and jump right to grab another falling platform, then jump right to another one, then use your other dash to get up to the ledge and reach the next checkpoint. To make this easier if you're good at wavedashes, wavedash to the right (with adjusted timing for the high gravity) to reach the falling platform immediately, then grab it and jump up and use both of your dashes diagonally up-right to skip to the end of this area easily.
At checkpoint 18, you'll need to dash up and climb a bit, then jump left and dash up again, then climb until you reach a dash crystal above. Jump into this dash crystal, then quickly dash straight left twice and you'll reach a disappearing platform. Position yourself to jump and dash straight up twice, then climb up a bit until you reach another dash crystal. You can then do two dashes to the right to land on another disappearing platform. Jump right and climb the right wall just after doing this, then you can dash twice straight up to reach the next checkpoint.
At checkpoint 17, jump left and dash two times to the left carefully to land on a small disappearing platform. Jump a bit to the left after landing, then dash straight left to grab the wall and start climbing. Before climbing into the crystal above, jump right and dash straight up, then move right a bit so you land on another small disappearing platform. Jump off of this to the right, then dash straight right and straight up to reach the edge which you can climb to the next checkpoint.
At checkpoint 16, dash straight up into the spring and be bounced left. Dash straight up then up-right into another spring, then after bouncing on this spring, dash straight up before crashing into the crystals, wait a bit, then dash left into the next spring. Dash up-right then straight right and grab the right wall, then climb up it to the next checkpoint.
At checkpoint 15, climb up to the chain of springs and start bouncing with them. When the third spring tries to bounce you into some crystals, dash up-right before it does to continue the spring chain. After the last spring bounces you to the left, keep going left as you dash up-left then straight up to then touch the spring on the right and bounce yourself to the left. After being bounced twice, you'll need to pay attention to dash straight up through the gap in the crystals while bouncing, then up-right into another spring. After a few more bounces back and forth, a spring will try to bounce you into crystals on the right, but just dash straight up twice before this happens and a few more springs will await you. These will chain you into the purple orb, taking you to the next section.
Room 2
Starting at checkpoint 14, the upward wind will kick in and low gravity physics will begin. Jump to the left, then fall for a bit before dashing straight left and straight up to reach a dash crystal. After this, dash straight up once, more to the right a bit, then dash straight up again and hit another dash crystal. Dash straight up from there, then up-right to go over the crystals and reach the ledge.
At checkpoint 13, you'll need to do an infamously tight maneuver to get up. Jump slightly right and dash up-right to position yourself at the right side of the pink cloud. Hold down as you start moving a bit to the right for the big bounce you'll get, then immediately after passing the crystals start moving left in the air. Dash up-left from here, then straight up and move to the right to land on another pink cloud. Try be as far left on the pink cloud as possible before bouncing up while still moving left. If done right, you'll be past the crystals, and then you need to dash straight right twice and fall to the right and back left properly to be able to reach the spring below. Along with the other spring on the right, you'll need to use this spring's bounce to position yourself for a straight up, then up-right dash to reach the next checkpoint.
At checkpoint 12, slide down the left wall to reach a spring below, which bounces you perfectly to be aligned in the crystal corridor for a straight right and straight up dash to reach another spring to bounce you further right. Move carefully here as you fall, then dash straight left and fall a bit before dashing straight right to reach another spring on the left. Bounce on this one and, just before hitting the wall of crystals, dash straight up and start moving right. Fall for a bit before dashing diagonally up-right to make it to the next checkpoint.
At checkpoint 11, jump and dash up-right to land on the pink cloud, but don't bounce on it at all or you'll fling into crystals above. Instead walk off it quickly after landing, then dash straight right and straight up to land on another pink cloud. Walk left off of this one, then dash right and up again to land on another pink cloud, which you should walk off to the right before dashing right and up onto one more pink cloud. Do a big bounce on this pink cloud, then dash straight right twice to narrowly avoid the crystals below.
At checkpoint 10, stamina is important so don't use any of it when you can. Do some wall jumps up the starting area until you jump left over some crystals. There's a small platform that you can wall jump off to the left, but you should grab it before doing this to make sure your position is right. Another platform must be jumped off in this way after going to the left, so repeat the process. After another jump left, dash straight up and do some more telegraphed wall jumps. Some small platforms within pillars of crystals to the right will be present, and you can just wall jump off each of them, but a grab to ensure your safety as well as reaching the top of the platform before the jump will be helpful. After the third one of these, you can dash straight up and climb to the open area above, then go to the left to reach the next checkpoint.
At checkpoint 9, you'll need to perform many careful maneuvers with clouds while pillars of crystal are everywhere. Jump to the left and do two dashes to reach the first white cloud. Do a big bounce and move left to wrap yourself around the crystals, fall a bit, then dash straight left and straight up to reach a pink cloud. This will bounce you into crystals, so walk off it to the right quickly, then fall before dashing straight left and straight up again to reach another pink cloud. Bounce up on this one to get further to the left beyond the pillar of crystals, do a dash left at the midpoint of the fall, then fall more before doing an up-right dash to safely land on the next pink cloud. You'll need to bounce to the left quickly after, then you can do two dashes up-left to make it over more crystals. A platform can be seen on the right as you fall, and from here stamina will be important. Wall jump to the left to reach another platform, which you should grab and climb quickly before jumping over to the left and wall jumping off the left side of the same platform. You'll reach a wall to the left, which you should then fall straight down from before wall jumping to the left as soon as you can with the platform below. Climb up the platform to the left which you reach quickly, then wall jump to the right, left again, and grab the last platform and climb to the top of it. Jump to the left side of this platform and wall jump off of it to the left and you'll be able to reach the purple orb, taking you to the next section.
Room 3
You'll arrive in this room next to checkpoint 8 and above will be the Bird giving instructions on how to do a wall bounce. Align yourself to the right of the platform above, then dash straight up twice and wall bounce to the right off of the platform to reach the ledge.
At checkpoint 7, jump to the right and dash straight up to do a wall bounce to the right, then use this gained height to do another wall bounce on the next platform and you'll be able to get over the crystal blockade.
At checkpoint 6, jump to the right and dash straight up, then straight left to hit a spring. Move to the right after this bounce and dash straight right, then prepare for a wall bounce after dashing straight up which enables you to get to the dash crystal to the right. Keep going right and do another straight right dash into a straight up dash for a wall bounce.
At checkpoint 5, walk onto the disappearing platform and fall onto the spring below. Dash up-right into the first dash crystal, and from here you can follow the dash crystals by dashing straight up, up-left, straight up, up-right, straight up, up-left, straight up, and up-left again.
At checkpoint 4, jump left and dash straight left, then straight up for a precise wall bounce off the tiny ledge, then climb up to the next checkpoint. An easier alternative if you know how to wavedash is to wavedash to the left, then dash straight up twice and climb from there.
At checkpoint 3, some very tiny platforms will need to be wall bounced off of. Do a very tiny jump left and keep going left to align yourself for the first wall bounce, then climb up until Madeline's hand is just above the lighter colored parts of the wall. From there exactly, jump left and do the next wall bounce, then climb up to the ledge. If you know how to wavedash, a wavedash can be done from the start to skip the first wall bounce needed, just dash straight up before crashing into the crystals to the left.
At checkpoint 2, you need to go left and dash straight left and straight up. A wall bounce isn't needed off of the platform you'll reach, so you can just grab it and climb to the top and jump left to reach the white cloud. Move to the left as you get a large bounce off this white cloud, then do a dash straight up then straight right to reach another white cloud. Go right after a small bounce off this cloud to then dash straight right and straight up onto another white cloud. Walk right off this cloud and fall until you need to to dash straight right twice and arrive at a pink cloud. Move left as you bounce up from this cloud, then dash straight up and up-right to reach another white cloud. Align the height of your small hops on this cloud to dash straight right and land on a pink cloud, which you should just let disappear so you can fall below and dash straight right, then straight up onto another pink cloud. When this pink cloud disappears, fall and dash straight right and straight up into the dash crystal, then fall and repeat the process again to reach one more pink cloud. Walk to the right off this pink cloud quickly and dash straight right and straight up to a white cloud. Get a big bounce up and move to the right, then fall and prepare yourself to dash straight right and straight up one last time for a final wall bounce, allowing you to climb up to the last checkpoint.
At checkpoint 1, just scale the right wall with climbing and dashing straight up, then continue right while avoiding falling into the gaps with crystals below. With two dashes up-right twice, you can reach the big red flag at the end, then walk off to the right and walk back left to a secret area containing the purple orb, which will take you to the last room.
Room 4
This will be the cassette block room of the chapter. Bounce up from the white cloud you spawn on top of and dash straight up twice to reach another white cloud. Wait bouncing until you can find a cycle where you can bounce up just as the blocks are about to turn to blue. Depending on your timing, you can either dash straight left or up-left to stall enough for the blocks to turn pink again before you have to dash straight left or up-left again onto another white cloud after falling. You can wait on this next white cloud until you see a cycle where you land just before the blocks turn to blue. Bounce high and dash either straight left or up-left, then straight up inbetween the blue cassette block and the crystals to the right to stall if needed. Quickly bounce up on the white cloud before the blocks turn blue or you'll be caught in the spikes at a bad time. Move left and dash straight up twice to pass a pink cassette block and land on the last white cloud. You can bounce on this cloud until you're comfortable bouncing up, which should be done at a time shortly before the blocks turn to pink. Bounce up, then wait if needed, then dash straight up twice and grab the pink cassette block on the left. Right after this, jump to the right and grab the blue cassette block that's opposing the pink block you were just grabbing. Jump straight up to grab the pink cassette block above as the blocks turn to pink, climb a bit more, then jump up again when the blocks turn blue and stand on the blue cassette block. Quickly jump to the left and dash straight up twice into the Crystal Heart to win the level.